68 files changed, 653 insertions, 742 deletions
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index ac16e815e275..6830d2848bd7 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -112,7 +112,7 @@ config VIDEO_IR_I2C
 #
 menu "Encoders/decoders and other helper chips"
-        depends on !VIDEO_HELPER_CHIPS_AUTO
+        visible if !VIDEO_HELPER_CHIPS_AUTO
 comment "Audio decoders"
diff --git a/drivers/media/video/arv.c b/drivers/media/video/arv.c
index 31e7a123d19a..f989f2820d88 100644
--- a/drivers/media/video/arv.c
+++ b/drivers/media/video/arv.c
@@ -712,7 +712,7 @@ static int ar_initialize(struct ar *ar)
 static const struct v4l2_file_operations ar_fops = {
        .owner          = THIS_MODULE,
        .read           = ar_read,
-        .ioctl          = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
 };
 static const struct v4l2_ioctl_ops ar_ioctl_ops = {
diff --git a/drivers/media/video/au0828/au0828-cards.c b/drivers/media/video/au0828/au0828-cards.c
index 0453816d4ec3..01be89fa5c78 100644
--- a/drivers/media/video/au0828/au0828-cards.c
+++ b/drivers/media/video/au0828/au0828-cards.c
@@ -212,7 +212,7 @@ void au0828_card_setup(struct au0828_dev *dev)
                   be abstracted out if we ever need to support a different
                   demod) */
                sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                                NULL, "au8522", 0x8e >> 1, NULL);
+                                "au8522", 0x8e >> 1, NULL);
                if (sd == NULL)
                        printk(KERN_ERR "analog subdev registration failed\n");
        }
@@ -221,7 +221,7 @@ void au0828_card_setup(struct au0828_dev *dev)
        if (dev->board.tuner_type != TUNER_ABSENT) {
                /* Load the tuner module, which does the attach */
                sd = v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                                NULL, "tuner", dev->board.tuner_addr, NULL);
+                                "tuner", dev->board.tuner_addr, NULL);
                if (sd == NULL)
                        printk(KERN_ERR "tuner subdev registration fail\n");
diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index 87d8b006ef77..49efcf660ba6 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -3529,7 +3529,7 @@ void __devinit bttv_init_card2(struct bttv *btv)
                struct v4l2_subdev *sd;
                sd = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                        &btv->c.i2c_adap, NULL, "saa6588", 0, addrs);
+                        &btv->c.i2c_adap, "saa6588", 0, addrs);
                btv->has_saa6588 = (sd != NULL);
        }
@@ -3554,7 +3554,7 @@ void __devinit bttv_init_card2(struct bttv *btv)
                };
                btv->sd_msp34xx = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                        &btv->c.i2c_adap, NULL, "msp3400", 0, addrs);
+                        &btv->c.i2c_adap, "msp3400", 0, addrs);
                if (btv->sd_msp34xx)
                        return;
                goto no_audio;
@@ -3568,7 +3568,7 @@ void __devinit bttv_init_card2(struct bttv *btv)
                };
                if (v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                                &btv->c.i2c_adap, NULL, "tda7432", 0, addrs))
+                                &btv->c.i2c_adap, "tda7432", 0, addrs))
                        return;
                goto no_audio;
        }
@@ -3576,7 +3576,7 @@ void __devinit bttv_init_card2(struct bttv *btv)
        case 3: {
                /* The user specified that we should probe for tvaudio */
                btv->sd_tvaudio = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                        &btv->c.i2c_adap, NULL, "tvaudio", 0, tvaudio_addrs());
+                        &btv->c.i2c_adap, "tvaudio", 0, tvaudio_addrs());
                if (btv->sd_tvaudio)
                        return;
                goto no_audio;
@@ -3596,11 +3596,11 @@ void __devinit bttv_init_card2(struct bttv *btv)
           found is really something else (e.g. a tea6300). */
        if (!bttv_tvcards[btv->c.type].no_msp34xx) {
                btv->sd_msp34xx = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                        &btv->c.i2c_adap, NULL, "msp3400",
+                        &btv->c.i2c_adap, "msp3400",
                        0, I2C_ADDRS(I2C_ADDR_MSP3400 >> 1));
        } else if (bttv_tvcards[btv->c.type].msp34xx_alt) {
                btv->sd_msp34xx = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                        &btv->c.i2c_adap, NULL, "msp3400",
+                        &btv->c.i2c_adap, "msp3400",
                        0, I2C_ADDRS(I2C_ADDR_MSP3400_ALT >> 1));
        }
@@ -3616,13 +3616,13 @@ void __devinit bttv_init_card2(struct bttv *btv)
                };
                if (v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                                &btv->c.i2c_adap, NULL, "tda7432", 0, addrs))
+                                &btv->c.i2c_adap, "tda7432", 0, addrs))
                        return;
        }
        /* Now see if we can find one of the tvaudio devices. */
        btv->sd_tvaudio = v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                &btv->c.i2c_adap, NULL, "tvaudio", 0, tvaudio_addrs());
+                &btv->c.i2c_adap, "tvaudio", 0, tvaudio_addrs());
        if (btv->sd_tvaudio)
                return;
@@ -3646,13 +3646,13 @@ void __devinit bttv_init_tuner(struct bttv *btv)
                /* Load tuner module before issuing tuner config call! */
                if (bttv_tvcards[btv->c.type].has_radio)
                        v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                                &btv->c.i2c_adap, NULL, "tuner",
+                                &btv->c.i2c_adap, "tuner",
                                0, v4l2_i2c_tuner_addrs(ADDRS_RADIO));
                v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                                &btv->c.i2c_adap, NULL, "tuner",
+                                &btv->c.i2c_adap, "tuner",
                                0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
                v4l2_i2c_new_subdev(&btv->c.v4l2_dev,
-                                &btv->c.i2c_adap, NULL, "tuner",
+                                &btv->c.i2c_adap, "tuner",
                                0, v4l2_i2c_tuner_addrs(ADDRS_TV_WITH_DEMOD));
                tun_setup.mode_mask = T_ANALOG_TV | T_DIGITAL_TV;
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 3da6e80e1041..0902ec041c7a 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -42,7 +42,6 @@
 #include <linux/fs.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/kdev_t.h>
 #include "bttvp.h"
@@ -855,7 +854,6 @@ int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
                xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
        /* is it free? */
-        mutex_lock(&btv->lock);
        if (btv->resources & xbits) {
                /* no, someone else uses it */
                goto fail;
@@ -885,11 +883,9 @@ int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
        /* it's free, grab it */
        fh->resources  |= bit;
        btv->resources |= bit;
-        mutex_unlock(&btv->lock);
        return 1;
 fail:
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -941,7 +937,6 @@ void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
                /* trying to free ressources not allocated by us ... */
                printk("bttv: BUG! (btres)\n");
        }
-        mutex_lock(&btv->lock);
        fh->resources  &= ~bits;
        btv->resources &= ~bits;
@@ -952,8 +947,6 @@ void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
        if (0 == (bits & VBI_RESOURCES))
                disclaim_vbi_lines(btv);
-        mutex_unlock(&btv->lock);
 }
 /* ----------------------------------------------------------------------- */
@@ -1714,28 +1707,20 @@ static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
                /* Make sure tvnorm and vbi_end remain consistent
                   until we're done. */
-                mutex_lock(&btv->lock);
                norm = btv->tvnorm;
                /* In this mode capturing always starts at defrect.top
                   (default VDELAY), ignoring cropping parameters. */
                if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
-                        mutex_unlock(&btv->lock);
                        return -EINVAL;
                }
-                mutex_unlock(&btv->lock);
                c.rect = bttv_tvnorms[norm].cropcap.defrect;
        } else {
-                mutex_lock(&btv->lock);
                norm = btv->tvnorm;
                c = btv->crop[!!fh->do_crop];
-                mutex_unlock(&btv->lock);
                if (width < c.min_scaled_width ||
                    width > c.max_scaled_width ||
                    height < c.min_scaled_height)
@@ -1859,7 +1844,6 @@ static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
        unsigned int i;
        int err;
-        mutex_lock(&btv->lock);
        err = v4l2_prio_check(&btv->prio, fh->prio);
        if (err)
                goto err;
@@ -1875,7 +1859,6 @@ static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
        set_tvnorm(btv, i);
 err:
-        mutex_unlock(&btv->lock);
        return err;
 }
@@ -1899,7 +1882,6 @@ static int bttv_enum_input(struct file *file, void *priv,
        struct bttv *btv = fh->btv;
        int rc = 0;
-        mutex_lock(&btv->lock);
        if (i->index >= bttv_tvcards[btv->c.type].video_inputs) {
                rc = -EINVAL;
                goto err;
@@ -1929,7 +1911,6 @@ static int bttv_enum_input(struct file *file, void *priv,
        i->std = BTTV_NORMS;
 err:
-        mutex_unlock(&btv->lock);
        return rc;
 }
@@ -1939,9 +1920,7 @@ static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
        struct bttv_fh *fh = priv;
        struct bttv *btv = fh->btv;
-        mutex_lock(&btv->lock);
        *i = btv->input;
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -1953,7 +1932,6 @@ static int bttv_s_input(struct file *file, void *priv, unsigned int i)
        int err;
-        mutex_lock(&btv->lock);
        err = v4l2_prio_check(&btv->prio, fh->prio);
        if (unlikely(err))
                goto err;
@@ -1966,7 +1944,6 @@ static int bttv_s_input(struct file *file, void *priv, unsigned int i)
        set_input(btv, i, btv->tvnorm);
 err:
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -1980,7 +1957,6 @@ static int bttv_s_tuner(struct file *file, void *priv,
        if (unlikely(0 != t->index))
                return -EINVAL;
-        mutex_lock(&btv->lock);
        if (unlikely(btv->tuner_type == TUNER_ABSENT)) {
                err = -EINVAL;
                goto err;
@@ -1996,7 +1972,6 @@ static int bttv_s_tuner(struct file *file, void *priv,
                btv->audio_mode_gpio(btv, t, 1);
 err:
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -2007,10 +1982,8 @@ static int bttv_g_frequency(struct file *file, void *priv,
        struct bttv_fh *fh  = priv;
        struct bttv *btv = fh->btv;
-        mutex_lock(&btv->lock);
        f->type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
        f->frequency = btv->freq;
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -2025,7 +1998,6 @@ static int bttv_s_frequency(struct file *file, void *priv,
        if (unlikely(f->tuner != 0))
                return -EINVAL;
-        mutex_lock(&btv->lock);
        err = v4l2_prio_check(&btv->prio, fh->prio);
        if (unlikely(err))
                goto err;
@@ -2040,7 +2012,6 @@ static int bttv_s_frequency(struct file *file, void *priv,
        if (btv->has_matchbox && btv->radio_user)
                tea5757_set_freq(btv, btv->freq);
 err:
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -2173,7 +2144,6 @@ limit_scaled_size_lock       (struct bttv_fh *               fh,
        /* Make sure tvnorm, vbi_end and the current cropping parameters
           remain consistent until we're done. */
-        mutex_lock(&btv->lock);
        b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
@@ -2251,7 +2221,6 @@ limit_scaled_size_lock       (struct bttv_fh *               fh,
        rc = 0; /* success */
 fail:
-        mutex_unlock(&btv->lock);
        return rc;
 }
@@ -2283,9 +2252,7 @@ verify_window_lock		(struct bttv_fh *               fh,
        if (V4L2_FIELD_ANY == field) {
                __s32 height2;
-                mutex_lock(&fh->btv->lock);
                height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
-                mutex_unlock(&fh->btv->lock);
                field = (win->w.height > height2)
                        ? V4L2_FIELD_INTERLACED
                        : V4L2_FIELD_TOP;
@@ -2361,7 +2328,6 @@ static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
                }
        }
-        mutex_lock(&fh->cap.vb_lock);
        /* clip against screen */
        if (NULL != btv->fbuf.base)
                n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
@@ -2392,13 +2358,6 @@ static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
        fh->ov.field    = win->field;
        fh->ov.setup_ok = 1;
-        /*
-         * FIXME: btv is protected by btv->lock mutex, while btv->init
-         *        is protected by fh->cap.vb_lock. This seems to open the
-         *        possibility for some race situations. Maybe the better would
-         *        be to unify those locks or to use another way to store the
-         *        init values that will be consumed by videobuf callbacks
-         */
        btv->init.ov.w.width   = win->w.width;
        btv->init.ov.w.height  = win->w.height;
        btv->init.ov.field     = win->field;
@@ -2413,7 +2372,6 @@ static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
                bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
                retval = bttv_switch_overlay(btv,fh,new);
        }
-        mutex_unlock(&fh->cap.vb_lock);
        return retval;
 }
@@ -2527,9 +2485,7 @@ static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
        if (V4L2_FIELD_ANY == field) {
                __s32 height2;
-                mutex_lock(&btv->lock);
                height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
-                mutex_unlock(&btv->lock);
                field = (f->fmt.pix.height > height2)
                        ? V4L2_FIELD_INTERLACED
                        : V4L2_FIELD_BOTTOM;
@@ -2615,7 +2571,6 @@ static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
        fmt = format_by_fourcc(f->fmt.pix.pixelformat);
        /* update our state informations */
-        mutex_lock(&fh->cap.vb_lock);
        fh->fmt              = fmt;
        fh->cap.field        = f->fmt.pix.field;
        fh->cap.last         = V4L2_FIELD_NONE;
@@ -2624,7 +2579,6 @@ static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
        btv->init.fmt        = fmt;
        btv->init.width      = f->fmt.pix.width;
        btv->init.height     = f->fmt.pix.height;
-        mutex_unlock(&fh->cap.vb_lock);
        return 0;
 }
@@ -2650,11 +2604,9 @@ static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
        unsigned int i;
        struct bttv_fh *fh = priv;
-        mutex_lock(&fh->cap.vb_lock);
        retval = __videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize,
                                     V4L2_MEMORY_MMAP);
        if (retval < 0) {
-                mutex_unlock(&fh->cap.vb_lock);
                return retval;
        }
@@ -2666,7 +2618,6 @@ static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
        for (i = 0; i < gbuffers; i++)
                mbuf->offsets[i] = i * gbufsize;
-        mutex_unlock(&fh->cap.vb_lock);
        return 0;
 }
 #endif
@@ -2776,10 +2727,8 @@ static int bttv_overlay(struct file *file, void *f, unsigned int on)
        int retval = 0;
        if (on) {
-                mutex_lock(&fh->cap.vb_lock);
                /* verify args */
                if (unlikely(!btv->fbuf.base)) {
-                        mutex_unlock(&fh->cap.vb_lock);
                        return -EINVAL;
                }
                if (unlikely(!fh->ov.setup_ok)) {
@@ -2788,13 +2737,11 @@ static int bttv_overlay(struct file *file, void *f, unsigned int on)
                }
                if (retval)
                        return retval;
-                mutex_unlock(&fh->cap.vb_lock);
        }
        if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
                return -EBUSY;
-        mutex_lock(&fh->cap.vb_lock);
        if (on) {
                fh->ov.tvnorm = btv->tvnorm;
                new = videobuf_sg_alloc(sizeof(*new));
@@ -2806,7 +2753,6 @@ static int bttv_overlay(struct file *file, void *f, unsigned int on)
        /* switch over */
        retval = bttv_switch_overlay(btv, fh, new);
-        mutex_unlock(&fh->cap.vb_lock);
        return retval;
 }
@@ -2845,7 +2791,6 @@ static int bttv_s_fbuf(struct file *file, void *f,
        }
        /* ok, accept it */
-        mutex_lock(&fh->cap.vb_lock);
        btv->fbuf.base       = fb->base;
        btv->fbuf.fmt.width  = fb->fmt.width;
        btv->fbuf.fmt.height = fb->fmt.height;
@@ -2877,7 +2822,6 @@ static int bttv_s_fbuf(struct file *file, void *f,
                        retval = bttv_switch_overlay(btv, fh, new);
                }
        }
-        mutex_unlock(&fh->cap.vb_lock);
        return retval;
 }
@@ -2956,7 +2900,6 @@ static int bttv_queryctrl(struct file *file, void *priv,
             c->id >= V4L2_CID_PRIVATE_LASTP1))
                return -EINVAL;
-        mutex_lock(&btv->lock);
        if (!btv->volume_gpio && (c->id == V4L2_CID_AUDIO_VOLUME))
                *c = no_ctl;
        else {
@@ -2964,7 +2907,6 @@ static int bttv_queryctrl(struct file *file, void *priv,
                *c = (NULL != ctrl) ? *ctrl : no_ctl;
        }
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -2975,10 +2917,8 @@ static int bttv_g_parm(struct file *file, void *f,
        struct bttv_fh *fh = f;
        struct bttv *btv = fh->btv;
-        mutex_lock(&btv->lock);
        v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
                                    &parm->parm.capture.timeperframe);
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -2994,7 +2934,6 @@ static int bttv_g_tuner(struct file *file, void *priv,
        if (0 != t->index)
                return -EINVAL;
-        mutex_lock(&btv->lock);
        t->rxsubchans = V4L2_TUNER_SUB_MONO;
        bttv_call_all(btv, tuner, g_tuner, t);
        strcpy(t->name, "Television");
@@ -3006,7 +2945,6 @@ static int bttv_g_tuner(struct file *file, void *priv,
        if (btv->audio_mode_gpio)
                btv->audio_mode_gpio(btv, t, 0);
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3015,9 +2953,7 @@ static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p)
        struct bttv_fh *fh = f;
        struct bttv *btv = fh->btv;
-        mutex_lock(&btv->lock);
        *p = v4l2_prio_max(&btv->prio);
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3029,9 +2965,7 @@ static int bttv_s_priority(struct file *file, void *f,
        struct bttv *btv = fh->btv;
        int     rc;
-        mutex_lock(&btv->lock);
        rc = v4l2_prio_change(&btv->prio, &fh->prio, prio);
-        mutex_unlock(&btv->lock);
        return rc;
 }
@@ -3046,9 +2980,7 @@ static int bttv_cropcap(struct file *file, void *priv,
            cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
                return -EINVAL;
-        mutex_lock(&btv->lock);
        *cap = bttv_tvnorms[btv->tvnorm].cropcap;
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3066,9 +2998,7 @@ static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
           inconsistent with fh->width or fh->height and apps
           do not expect a change here. */
-        mutex_lock(&btv->lock);
        crop->c = btv->crop[!!fh->do_crop].rect;
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3092,17 +3022,14 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
        /* Make sure tvnorm, vbi_end and the current cropping
           parameters remain consistent until we're done. Note
           read() may change vbi_end in check_alloc_btres_lock(). */
-        mutex_lock(&btv->lock);
        retval = v4l2_prio_check(&btv->prio, fh->prio);
        if (0 != retval) {
-                mutex_unlock(&btv->lock);
                return retval;
        }
        retval = -EBUSY;
        if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
-                mutex_unlock(&btv->lock);
                return retval;
        }
@@ -3114,7 +3041,6 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
        b_top = max(b->top, btv->vbi_end);
        if (b_top + 32 >= b_bottom) {
-                mutex_unlock(&btv->lock);
                return retval;
        }
@@ -3137,12 +3063,8 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
        btv->crop[1] = c;
-        mutex_unlock(&btv->lock);
        fh->do_crop = 1;
-        mutex_lock(&fh->cap.vb_lock);
        if (fh->width < c.min_scaled_width) {
                fh->width = c.min_scaled_width;
                btv->init.width = c.min_scaled_width;
@@ -3159,8 +3081,6 @@ static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
                btv->init.height = c.max_scaled_height;
        }
-        mutex_unlock(&fh->cap.vb_lock);
        return 0;
 }
@@ -3228,7 +3148,6 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
                return videobuf_poll_stream(file, &fh->vbi, wait);
        }
-        mutex_lock(&fh->cap.vb_lock);
        if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
                /* streaming capture */
                if (list_empty(&fh->cap.stream))
@@ -3263,7 +3182,6 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
        else
                rc = 0;
 err:
-        mutex_unlock(&fh->cap.vb_lock);
        return rc;
 }
@@ -3294,23 +3212,11 @@ static int bttv_open(struct file *file)
                return -ENOMEM;
        file->private_data = fh;
-        /*
-         * btv is protected by btv->lock mutex, while btv->init and other
-         * streaming vars are protected by fh->cap.vb_lock. We need to take
-         * care of both locks to avoid troubles. However, vb_lock is used also
-         * inside videobuf, without calling buf->lock. So, it is a very bad
-         * idea to hold both locks at the same time.
-         * Let's first copy btv->init at fh, holding cap.vb_lock, and then work
-         * with the rest of init, holding btv->lock.
-         */
-        mutex_lock(&fh->cap.vb_lock);
        *fh = btv->init;
-        mutex_unlock(&fh->cap.vb_lock);
        fh->type = type;
        fh->ov.setup_ok = 0;
-        mutex_lock(&btv->lock);
        v4l2_prio_open(&btv->prio, &fh->prio);
        videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
@@ -3318,13 +3224,13 @@ static int bttv_open(struct file *file)
                            V4L2_BUF_TYPE_VIDEO_CAPTURE,
                            V4L2_FIELD_INTERLACED,
                            sizeof(struct bttv_buffer),
-                            fh, NULL);
+                            fh, &btv->lock);
        videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
                            &btv->c.pci->dev, &btv->s_lock,
                            V4L2_BUF_TYPE_VBI_CAPTURE,
                            V4L2_FIELD_SEQ_TB,
                            sizeof(struct bttv_buffer),
-                            fh, NULL);
+                            fh, &btv->lock);
        set_tvnorm(btv,btv->tvnorm);
        set_input(btv, btv->input, btv->tvnorm);
@@ -3347,7 +3253,6 @@ static int bttv_open(struct file *file)
        bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
        bttv_field_count(btv);
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3356,7 +3261,6 @@ static int bttv_release(struct file *file)
        struct bttv_fh *fh = file->private_data;
        struct bttv *btv = fh->btv;
-        mutex_lock(&btv->lock);
        /* turn off overlay */
        if (check_btres(fh, RESOURCE_OVERLAY))
                bttv_switch_overlay(btv,fh,NULL);
@@ -3382,14 +3286,8 @@ static int bttv_release(struct file *file)
        /* free stuff */
-        /*
-         * videobuf uses cap.vb_lock - we should avoid holding btv->lock,
-         * otherwise we may have dead lock conditions
-         */
-        mutex_unlock(&btv->lock);
        videobuf_mmap_free(&fh->cap);
        videobuf_mmap_free(&fh->vbi);
-        mutex_lock(&btv->lock);
        v4l2_prio_close(&btv->prio, fh->prio);
        file->private_data = NULL;
        kfree(fh);
@@ -3399,7 +3297,6 @@ static int bttv_release(struct file *file)
        if (!btv->users)
                audio_mute(btv, 1);
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3503,11 +3400,8 @@ static int radio_open(struct file *file)
        if (unlikely(!fh))
                return -ENOMEM;
        file->private_data = fh;
-        mutex_lock(&fh->cap.vb_lock);
        *fh = btv->init;
-        mutex_unlock(&fh->cap.vb_lock);
-        mutex_lock(&btv->lock);
        v4l2_prio_open(&btv->prio, &fh->prio);
        btv->radio_user++;
@@ -3515,7 +3409,6 @@ static int radio_open(struct file *file)
        bttv_call_all(btv, tuner, s_radio);
        audio_input(btv,TVAUDIO_INPUT_RADIO);
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3525,7 +3418,6 @@ static int radio_release(struct file *file)
        struct bttv *btv = fh->btv;
        struct rds_command cmd;
-        mutex_lock(&btv->lock);
        v4l2_prio_close(&btv->prio, fh->prio);
        file->private_data = NULL;
        kfree(fh);
@@ -3533,7 +3425,6 @@ static int radio_release(struct file *file)
        btv->radio_user--;
        bttv_call_all(btv, core, ioctl, RDS_CMD_CLOSE, &cmd);
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3562,7 +3453,6 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
                return -EINVAL;
        if (0 != t->index)
                return -EINVAL;
-        mutex_lock(&btv->lock);
        strcpy(t->name, "Radio");
        t->type = V4L2_TUNER_RADIO;
@@ -3571,8 +3461,6 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
        if (btv->audio_mode_gpio)
                btv->audio_mode_gpio(btv, t, 0);
-        mutex_unlock(&btv->lock);
        return 0;
 }
@@ -3693,7 +3581,7 @@ static const struct v4l2_file_operations radio_fops =
        .open     = radio_open,
        .read     = radio_read,
        .release  = radio_release,
-        .ioctl    = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
        .poll     = radio_poll,
 };
diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c
index 935e0c9a9674..c1193506131c 100644
--- a/drivers/media/video/bw-qcam.c
+++ b/drivers/media/video/bw-qcam.c
@@ -860,7 +860,7 @@ static ssize_t qcam_read(struct file *file, char __user *buf,
 static const struct v4l2_file_operations qcam_fops = {
        .owner          = THIS_MODULE,
-        .ioctl          = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
        .read           = qcam_read,
 };
diff --git a/drivers/media/video/c-qcam.c b/drivers/media/video/c-qcam.c
index 6e4b19698c13..24fc00965a12 100644
--- a/drivers/media/video/c-qcam.c
+++ b/drivers/media/video/c-qcam.c
@@ -718,7 +718,7 @@ static ssize_t qcam_read(struct file *file, char __user *buf,
 static const struct v4l2_file_operations qcam_fops = {
        .owner          = THIS_MODULE,
-        .ioctl          = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
        .read           = qcam_read,
 };
diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index 2934770dacc3..0dfff50891e4 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -1775,7 +1775,7 @@ static const struct v4l2_file_operations cafe_v4l_fops = {
        .read = cafe_v4l_read,
        .poll = cafe_v4l_poll,
        .mmap = cafe_v4l_mmap,
-        .ioctl = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
 };
 static const struct v4l2_ioctl_ops cafe_v4l_ioctl_ops = {
@@ -2065,8 +2065,8 @@ static int cafe_pci_probe(struct pci_dev *pdev,
                sensor_cfg.clock_speed = 45;
        cam->sensor_addr = 0x42;
-        cam->sensor = v4l2_i2c_new_subdev(&cam->v4l2_dev, &cam->i2c_adapter,
+        cam->sensor = v4l2_i2c_new_subdev_cfg(&cam->v4l2_dev, &cam->i2c_adapter,
-                        NULL, "ov7670", cam->sensor_addr, NULL);
+                        "ov7670", 0, &sensor_cfg, cam->sensor_addr, NULL);
        if (cam->sensor == NULL) {
                ret = -ENODEV;
                goto out_smbus;
diff --git a/drivers/media/video/cx18/cx18-alsa-pcm.c b/drivers/media/video/cx18/cx18-alsa-pcm.c
index 8f55692db36d..82d195be9197 100644
--- a/drivers/media/video/cx18/cx18-alsa-pcm.c
+++ b/drivers/media/video/cx18/cx18-alsa-pcm.c
@@ -218,7 +218,13 @@ static int snd_cx18_pcm_capture_close(struct snd_pcm_substream *substream)
 static int snd_cx18_pcm_ioctl(struct snd_pcm_substream *substream,
                     unsigned int cmd, void *arg)
 {
-        return snd_pcm_lib_ioctl(substream, cmd, arg);
+        struct snd_cx18_card *cxsc = snd_pcm_substream_chip(substream);
+        int ret;
+        snd_cx18_lock(cxsc);
+        ret = snd_pcm_lib_ioctl(substream, cmd, arg);
+        snd_cx18_unlock(cxsc);
+        return ret;
 }
diff --git a/drivers/media/video/cx18/cx18-i2c.c b/drivers/media/video/cx18/cx18-i2c.c
index a09caf883170..e71a026f3419 100644
--- a/drivers/media/video/cx18/cx18-i2c.c
+++ b/drivers/media/video/cx18/cx18-i2c.c
@@ -122,15 +122,15 @@ int cx18_i2c_register(struct cx18 *cx, unsigned idx)
        if (hw == CX18_HW_TUNER) {
                /* special tuner group handling */
                sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
-                                adap, NULL, type, 0, cx->card_i2c->radio);
+                                adap, type, 0, cx->card_i2c->radio);
                if (sd != NULL)
                        sd->grp_id = hw;
                sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
-                                adap, NULL, type, 0, cx->card_i2c->demod);
+                                adap, type, 0, cx->card_i2c->demod);
                if (sd != NULL)
                        sd->grp_id = hw;
                sd = v4l2_i2c_new_subdev(&cx->v4l2_dev,
-                                adap, NULL, type, 0, cx->card_i2c->tv);
+                                adap, type, 0, cx->card_i2c->tv);
                if (sd != NULL)
                        sd->grp_id = hw;
                return sd != NULL ? 0 : -1;
@@ -144,7 +144,7 @@ int cx18_i2c_register(struct cx18 *cx, unsigned idx)
                return -1;
        /* It's an I2C device other than an analog tuner or IR chip */
-        sd = v4l2_i2c_new_subdev(&cx->v4l2_dev, adap, NULL, type, hw_addrs[idx],
+        sd = v4l2_i2c_new_subdev(&cx->v4l2_dev, adap, type, hw_addrs[idx],
                                 NULL);
        if (sd != NULL)
                sd->grp_id = hw;
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index 9045f1ece0eb..ab461e27d9dd 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -41,7 +41,7 @@ static struct v4l2_file_operations cx18_v4l2_enc_fops = {
        .read = cx18_v4l2_read,
        .open = cx18_v4l2_open,
        /* FIXME change to video_ioctl2 if serialization lock can be removed */
-        .ioctl = cx18_v4l2_ioctl,
+        .unlocked_ioctl = cx18_v4l2_ioctl,
        .release = cx18_v4l2_close,
        .poll = cx18_v4l2_enc_poll,
 };
diff --git a/drivers/media/video/cx231xx/cx231xx-417.c b/drivers/media/video/cx231xx/cx231xx-417.c
index aab21f3ce472..4c7cac3b6254 100644
--- a/drivers/media/video/cx231xx/cx231xx-417.c
+++ b/drivers/media/video/cx231xx/cx231xx-417.c
@@ -31,7 +31,6 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
-#include <linux/smp_lock.h>
 #include <linux/vmalloc.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
@@ -1927,10 +1926,9 @@ static int mpeg_open(struct file *file)
                        dev = h;
        }
-        if (dev == NULL) {
+        if (dev == NULL)
-                unlock_kernel();
                return -ENODEV;
-        }
        mutex_lock(&dev->lock);
        /* allocate + initialize per filehandle data */
diff --git a/drivers/media/video/cx231xx/cx231xx-cards.c b/drivers/media/video/cx231xx/cx231xx-cards.c
index 56c2d8195ac6..2c78d188bb06 100644
--- a/drivers/media/video/cx231xx/cx231xx-cards.c
+++ b/drivers/media/video/cx231xx/cx231xx-cards.c
@@ -560,7 +560,7 @@ void cx231xx_card_setup(struct cx231xx *dev)
        if (dev->board.decoder == CX231XX_AVDECODER) {
                dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
                                        &dev->i2c_bus[0].i2c_adap,
-                                        NULL, "cx25840", 0x88 >> 1, NULL);
+                                        "cx25840", 0x88 >> 1, NULL);
                if (dev->sd_cx25840 == NULL)
                        cx231xx_info("cx25840 subdev registration failure\n");
                cx25840_call(dev, core, load_fw);
@@ -571,7 +571,7 @@ void cx231xx_card_setup(struct cx231xx *dev)
        if (dev->board.tuner_type != TUNER_ABSENT) {
                dev->sd_tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev,
                                                    &dev->i2c_bus[dev->board.tuner_i2c_master].i2c_adap,
-                                                    NULL, "tuner",
+                                                    "tuner",
                                                    dev->tuner_addr, NULL);
                if (dev->sd_tuner == NULL)
                        cx231xx_info("tuner subdev registration failure\n");
diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c
index a6cc12f8736c..9a98dc55f657 100644
--- a/drivers/media/video/cx23885/cx23885-417.c
+++ b/drivers/media/video/cx23885/cx23885-417.c
@@ -31,7 +31,6 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
-#include <linux/smp_lock.h>
 #include <linux/slab.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
@@ -1576,12 +1575,8 @@ static int mpeg_open(struct file *file)
        /* allocate + initialize per filehandle data */
        fh = kzalloc(sizeof(*fh), GFP_KERNEL);
-        if (NULL == fh) {
+        if (!fh)
-                unlock_kernel();
                return -ENOMEM;
-        }
-        lock_kernel();
        file->private_data = fh;
        fh->dev      = dev;
@@ -1592,8 +1587,6 @@ static int mpeg_open(struct file *file)
                            V4L2_FIELD_INTERLACED,
                            sizeof(struct cx23885_buffer),
                            fh, NULL);
-        unlock_kernel();
        return 0;
 }
diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c
index db054004e462..8861309268b1 100644
--- a/drivers/media/video/cx23885/cx23885-cards.c
+++ b/drivers/media/video/cx23885/cx23885-cards.c
@@ -1247,7 +1247,7 @@ void cx23885_card_setup(struct cx23885_dev *dev)
        case CX23885_BOARD_LEADTEK_WINFAST_PXTV1200:
                dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
                                &dev->i2c_bus[2].i2c_adap,
-                                NULL, "cx25840", 0x88 >> 1, NULL);
+                                "cx25840", 0x88 >> 1, NULL);
                if (dev->sd_cx25840) {
                        dev->sd_cx25840->grp_id = CX23885_HW_AV_CORE;
                        v4l2_subdev_call(dev->sd_cx25840, core, load_fw);
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c
index 93af9c65b484..8b2fb8a4375c 100644
--- a/drivers/media/video/cx23885/cx23885-video.c
+++ b/drivers/media/video/cx23885/cx23885-video.c
@@ -26,7 +26,6 @@
 #include <linux/kmod.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
@@ -743,8 +742,6 @@ static int video_open(struct file *file)
        if (NULL == fh)
                return -ENOMEM;
-        lock_kernel();
        file->private_data = fh;
        fh->dev      = dev;
        fh->radio    = radio;
@@ -762,8 +759,6 @@ static int video_open(struct file *file)
        dprintk(1, "post videobuf_queue_init()\n");
-        unlock_kernel();
        return 0;
 }
@@ -1512,10 +1507,10 @@ int cx23885_video_register(struct cx23885_dev *dev)
                if (dev->tuner_addr)
                        sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
                                &dev->i2c_bus[1].i2c_adap,
-                                NULL, "tuner", dev->tuner_addr, NULL);
+                                "tuner", dev->tuner_addr, NULL);
                else
                        sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                                &dev->i2c_bus[1].i2c_adap, NULL,
+                                &dev->i2c_bus[1].i2c_adap,
                                "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
                if (sd) {
                        struct tuner_setup tun_setup;
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 417d1d5c73c4..d7c94848249e 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -33,7 +33,6 @@
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firmware.h>
-#include <linux/smp_lock.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
 #include <media/cx2341x.h>
diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c
index b26fcba8600c..9b9e169cce90 100644
--- a/drivers/media/video/cx88/cx88-cards.c
+++ b/drivers/media/video/cx88/cx88-cards.c
@@ -3515,19 +3515,18 @@ struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr)
                   later code configures a tea5767.
                 */
                v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
-                                NULL, "tuner",
+                                "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_RADIO));
-                                0, v4l2_i2c_tuner_addrs(ADDRS_RADIO));
                if (has_demod)
                        v4l2_i2c_new_subdev(&core->v4l2_dev,
-                                &core->i2c_adap, NULL, "tuner",
+                                &core->i2c_adap, "tuner",
                                0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
                if (core->board.tuner_addr == ADDR_UNSET) {
                        v4l2_i2c_new_subdev(&core->v4l2_dev,
-                                &core->i2c_adap, NULL, "tuner",
+                                &core->i2c_adap, "tuner",
                                0, has_demod ? tv_addrs + 4 : tv_addrs);
                } else {
                        v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
-                                NULL, "tuner", core->board.tuner_addr, NULL);
+                                "tuner", core->board.tuner_addr, NULL);
                }
        }
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index d2f159daa8b5..62cea9549404 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -31,7 +31,6 @@
 #include <linux/kmod.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
 #include <linux/delay.h>
@@ -1896,14 +1895,13 @@ static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
        if (core->board.audio_chip == V4L2_IDENT_WM8775)
                v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
-                                NULL, "wm8775", 0x36 >> 1, NULL);
+                                "wm8775", 0x36 >> 1, NULL);
        if (core->board.audio_chip == V4L2_IDENT_TVAUDIO) {
                /* This probes for a tda9874 as is used on some
                   Pixelview Ultra boards. */
-                v4l2_i2c_new_subdev(&core->v4l2_dev,
+                v4l2_i2c_new_subdev(&core->v4l2_dev, &core->i2c_adap,
-                                &core->i2c_adap,
+                                "tvaudio", 0, I2C_ADDRS(0xb0 >> 1));
-                                NULL, "tvaudio", 0, I2C_ADDRS(0xb0 >> 1));
        }
        switch (core->boardnr) {
diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c
index d8e38cc4ec40..7333a9bb2549 100644
--- a/drivers/media/video/davinci/vpfe_capture.c
+++ b/drivers/media/video/davinci/vpfe_capture.c
@@ -1986,7 +1986,6 @@ static __init int vpfe_probe(struct platform_device *pdev)
                vpfe_dev->sd[i] =
                        v4l2_i2c_new_subdev_board(&vpfe_dev->v4l2_dev,
                                                  i2c_adap,
-                                                  NULL,
                                                  &sdinfo->board_info,
                                                  NULL);
                if (vpfe_dev->sd[i]) {
diff --git a/drivers/media/video/davinci/vpif_capture.c b/drivers/media/video/davinci/vpif_capture.c
index 6ac6acd16352..193abab6b355 100644
--- a/drivers/media/video/davinci/vpif_capture.c
+++ b/drivers/media/video/davinci/vpif_capture.c
@@ -2013,7 +2013,6 @@ static __init int vpif_probe(struct platform_device *pdev)
                vpif_obj.sd[i] =
                        v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
                                                  i2c_adap,
-                                                  NULL,
                                                  &subdevdata->board_info,
                                                  NULL);
diff --git a/drivers/media/video/davinci/vpif_display.c b/drivers/media/video/davinci/vpif_display.c
index 685f6a6ee603..412c65d54fe1 100644
--- a/drivers/media/video/davinci/vpif_display.c
+++ b/drivers/media/video/davinci/vpif_display.c
@@ -1553,7 +1553,7 @@ static __init int vpif_probe(struct platform_device *pdev)
        for (i = 0; i < subdev_count; i++) {
                vpif_obj.sd[i] = v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
-                                                i2c_adap, NULL,
+                                                i2c_adap,
                                                &subdevdata[i].board_info,
                                                NULL);
                if (!vpif_obj.sd[i]) {
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index 54859233f311..f7e9168157a5 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -2554,39 +2554,39 @@ void em28xx_card_setup(struct em28xx *dev)
        /* request some modules */
        if (dev->board.has_msp34xx)
                v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                        NULL, "msp3400", 0, msp3400_addrs);
+                        "msp3400", 0, msp3400_addrs);
        if (dev->board.decoder == EM28XX_SAA711X)
                v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                        NULL, "saa7115_auto", 0, saa711x_addrs);
+                        "saa7115_auto", 0, saa711x_addrs);
        if (dev->board.decoder == EM28XX_TVP5150)
                v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                        NULL, "tvp5150", 0, tvp5150_addrs);
+                        "tvp5150", 0, tvp5150_addrs);
        if (dev->em28xx_sensor == EM28XX_MT9V011) {
                struct v4l2_subdev *sd;
                sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                         &dev->i2c_adap, NULL, "mt9v011", 0, mt9v011_addrs);
+                         &dev->i2c_adap, "mt9v011", 0, mt9v011_addrs);
                v4l2_subdev_call(sd, core, s_config, 0, &dev->sensor_xtal);
        }
        if (dev->board.adecoder == EM28XX_TVAUDIO)
                v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                        NULL, "tvaudio", dev->board.tvaudio_addr, NULL);
+                        "tvaudio", dev->board.tvaudio_addr, NULL);
        if (dev->board.tuner_type != TUNER_ABSENT) {
                int has_demod = (dev->tda9887_conf & TDA9887_PRESENT);
                if (dev->board.radio.type)
                        v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                                NULL, "tuner", dev->board.radio_addr, NULL);
+                                "tuner", dev->board.radio_addr, NULL);
                if (has_demod)
                        v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                                &dev->i2c_adap, NULL, "tuner",
+                                &dev->i2c_adap, "tuner",
                                0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
                if (dev->tuner_addr == 0) {
                        enum v4l2_i2c_tuner_type type =
@@ -2594,14 +2594,14 @@ void em28xx_card_setup(struct em28xx *dev)
                        struct v4l2_subdev *sd;
                        sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                                &dev->i2c_adap, NULL, "tuner",
+                                &dev->i2c_adap, "tuner",
                                0, v4l2_i2c_tuner_addrs(type));
                        if (sd)
                                dev->tuner_addr = v4l2_i2c_subdev_addr(sd);
                } else {
                        v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                                NULL, "tuner", dev->tuner_addr, NULL);
+                                "tuner", dev->tuner_addr, NULL);
                }
        }
diff --git a/drivers/media/video/et61x251/et61x251_core.c b/drivers/media/video/et61x251/et61x251_core.c
index a5cfc76b40b7..bb164099ea2c 100644
--- a/drivers/media/video/et61x251/et61x251_core.c
+++ b/drivers/media/video/et61x251/et61x251_core.c
@@ -2530,7 +2530,7 @@ static const struct v4l2_file_operations et61x251_fops = {
        .owner = THIS_MODULE,
        .open =    et61x251_open,
        .release = et61x251_release,
-        .ioctl =   et61x251_ioctl,
+        .unlocked_ioctl =   et61x251_ioctl,
        .read =    et61x251_read,
        .poll =    et61x251_poll,
        .mmap =    et61x251_mmap,
diff --git a/drivers/media/video/fsl-viu.c b/drivers/media/video/fsl-viu.c
index 9a075d83dd1f..b8faff2dd711 100644
--- a/drivers/media/video/fsl-viu.c
+++ b/drivers/media/video/fsl-viu.c
@@ -1486,7 +1486,7 @@ static int __devinit viu_of_probe(struct platform_device *op,
        ad = i2c_get_adapter(0);
        viu_dev->decoder = v4l2_i2c_new_subdev(&viu_dev->v4l2_dev, ad,
-                        NULL, "saa7113", VIU_VIDEO_DECODER_ADDR, NULL);
+                        "saa7113", VIU_VIDEO_DECODER_ADDR, NULL);
        viu_dev->vidq.timeout.function = viu_vid_timeout;
        viu_dev->vidq.timeout.data     = (unsigned long)viu_dev;
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index 330dadc00106..e23de57e2c73 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -63,7 +63,10 @@ struct sd {
 #define QUALITY_DEF 80
        u8 jpegqual;                    /* webcam quality */
+        u8 reg01;
+        u8 reg17;
        u8 reg18;
+        u8 flags;
        s8 ag_cnt;
 #define AG_CNT_START 13
@@ -96,6 +99,22 @@ enum sensors {
        SENSOR_SP80708,
 };
+/* device flags */
+#define PDN_INV 1               /* inverse pin S_PWR_DN / sn_xxx tables */
+/* sn9c1xx definitions */
+/* register 0x01 */
+#define S_PWR_DN        0x01    /* sensor power down */
+#define S_PDN_INV       0x02    /* inverse pin S_PWR_DN */
+#define V_TX_EN         0x04    /* video transfer enable */
+#define LED             0x08    /* output to pin LED */
+#define SCL_SEL_OD      0x20    /* open-drain mode */
+#define SYS_SEL_48M     0x40    /* system clock 0: 24MHz, 1: 48MHz */
+/* register 0x17 */
+#define MCK_SIZE_MASK   0x1f    /* sensor master clock */
+#define SEN_CLK_EN      0x20    /* enable sensor clock */
+#define DEF_EN          0x80    /* defect pixel by 0: soft, 1: hard */
 /* V4L2 controls supported by the driver */
 static void setbrightness(struct gspca_dev *gspca_dev);
 static void setcontrast(struct gspca_dev *gspca_dev);
@@ -1755,141 +1774,6 @@ static void po2030n_probe(struct gspca_dev *gspca_dev)
        }
 }
-static void bridge_init(struct gspca_dev *gspca_dev,
-                          const u8 *sn9c1xx)
-{
-        struct sd *sd = (struct sd *) gspca_dev;
-        u8 reg0102[2];
-        const u8 *reg9a;
-        static const u8 reg9a_def[] =
-                {0x00, 0x40, 0x20, 0x00, 0x00, 0x00};
-        static const u8 reg9a_spec[] =
-                {0x00, 0x40, 0x38, 0x30, 0x00, 0x20};
-        static const u8 regd4[] = {0x60, 0x00, 0x00};
-        /* sensor clock already enabled in sd_init */
-        /* reg_w1(gspca_dev, 0xf1, 0x00); */
-        reg_w1(gspca_dev, 0x01, sn9c1xx[1]);
-        /* configure gpio */
-        reg0102[0] = sn9c1xx[1];
-        reg0102[1] = sn9c1xx[2];
-        if (gspca_dev->audio)
-                reg0102[1] |= 0x04;     /* keep the audio connection */
-        reg_w(gspca_dev, 0x01, reg0102, 2);
-        reg_w(gspca_dev, 0x08, &sn9c1xx[8], 2);
-        reg_w(gspca_dev, 0x17, &sn9c1xx[0x17], 5);
-        switch (sd->sensor) {
-        case SENSOR_GC0307:
-        case SENSOR_OV7660:
-        case SENSOR_PO1030:
-        case SENSOR_PO2030N:
-        case SENSOR_SOI768:
-        case SENSOR_SP80708:
-                reg9a = reg9a_spec;
-                break;
-        default:
-                reg9a = reg9a_def;
-                break;
-        }
-        reg_w(gspca_dev, 0x9a, reg9a, 6);
-        reg_w(gspca_dev, 0xd4, regd4, sizeof regd4);
-        reg_w(gspca_dev, 0x03, &sn9c1xx[3], 0x0f);
-        switch (sd->sensor) {
-        case SENSOR_ADCM1700:
-                reg_w1(gspca_dev, 0x01, 0x43);
-                reg_w1(gspca_dev, 0x17, 0x62);
-                reg_w1(gspca_dev, 0x01, 0x42);
-                reg_w1(gspca_dev, 0x01, 0x42);
-                break;
-        case SENSOR_GC0307:
-                msleep(50);
-                reg_w1(gspca_dev, 0x01, 0x61);
-                reg_w1(gspca_dev, 0x17, 0x22);
-                reg_w1(gspca_dev, 0x01, 0x60);
-                reg_w1(gspca_dev, 0x01, 0x40);
-                msleep(50);
-                break;
-        case SENSOR_MI0360B:
-                reg_w1(gspca_dev, 0x01, 0x61);
-                reg_w1(gspca_dev, 0x17, 0x60);
-                reg_w1(gspca_dev, 0x01, 0x60);
-                reg_w1(gspca_dev, 0x01, 0x40);
-                break;
-        case SENSOR_MT9V111:
-                reg_w1(gspca_dev, 0x01, 0x61);
-                reg_w1(gspca_dev, 0x17, 0x61);
-                reg_w1(gspca_dev, 0x01, 0x60);
-                reg_w1(gspca_dev, 0x01, 0x40);
-                break;
-        case SENSOR_OM6802:
-                msleep(10);
-                reg_w1(gspca_dev, 0x02, 0x73);
-                reg_w1(gspca_dev, 0x17, 0x60);
-                reg_w1(gspca_dev, 0x01, 0x22);
-                msleep(100);
-                reg_w1(gspca_dev, 0x01, 0x62);
-                reg_w1(gspca_dev, 0x17, 0x64);
-                reg_w1(gspca_dev, 0x17, 0x64);
-                reg_w1(gspca_dev, 0x01, 0x42);
-                msleep(10);
-                reg_w1(gspca_dev, 0x01, 0x42);
-                i2c_w8(gspca_dev, om6802_init0[0]);
-                i2c_w8(gspca_dev, om6802_init0[1]);
-                msleep(15);
-                reg_w1(gspca_dev, 0x02, 0x71);
-                msleep(150);
-                break;
-        case SENSOR_OV7630:
-                reg_w1(gspca_dev, 0x01, 0x61);
-                reg_w1(gspca_dev, 0x17, 0xe2);
-                reg_w1(gspca_dev, 0x01, 0x60);
-                reg_w1(gspca_dev, 0x01, 0x40);
-                break;
-        case SENSOR_OV7648:
-                reg_w1(gspca_dev, 0x01, 0x63);
-                reg_w1(gspca_dev, 0x17, 0x20);
-                reg_w1(gspca_dev, 0x01, 0x62);
-                reg_w1(gspca_dev, 0x01, 0x42);
-                break;
-        case SENSOR_PO1030:
-        case SENSOR_SOI768:
-                reg_w1(gspca_dev, 0x01, 0x61);
-                reg_w1(gspca_dev, 0x17, 0x20);
-                reg_w1(gspca_dev, 0x01, 0x60);
-                reg_w1(gspca_dev, 0x01, 0x40);
-                break;
-        case SENSOR_PO2030N:
-        case SENSOR_OV7660:
-                reg_w1(gspca_dev, 0x01, 0x63);
-                reg_w1(gspca_dev, 0x17, 0x20);
-                reg_w1(gspca_dev, 0x01, 0x62);
-                reg_w1(gspca_dev, 0x01, 0x42);
-                break;
-        case SENSOR_SP80708:
-                reg_w1(gspca_dev, 0x01, 0x63);
-                reg_w1(gspca_dev, 0x17, 0x20);
-                reg_w1(gspca_dev, 0x01, 0x62);
-                reg_w1(gspca_dev, 0x01, 0x42);
-                msleep(100);
-                reg_w1(gspca_dev, 0x02, 0x62);
-                break;
-        default:
-/*      case SENSOR_HV7131R: */
-/*      case SENSOR_MI0360: */
-/*      case SENSOR_MO4000: */
-                reg_w1(gspca_dev, 0x01, 0x43);
-                reg_w1(gspca_dev, 0x17, 0x61);
-                reg_w1(gspca_dev, 0x01, 0x42);
-                if (sd->sensor == SENSOR_HV7131R)
-                        hv7131r_probe(gspca_dev);
-                break;
-        }
-}
 /* this function is called at probe time */
 static int sd_config(struct gspca_dev *gspca_dev,
                        const struct usb_device_id *id)
@@ -1898,7 +1782,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
        struct cam *cam;
        sd->bridge = id->driver_info >> 16;
-        sd->sensor = id->driver_info;
+        sd->sensor = id->driver_info >> 8;
+        sd->flags = id->driver_info;
        cam = &gspca_dev->cam;
        if (sd->sensor == SENSOR_ADCM1700) {
@@ -1929,7 +1814,7 @@ static int sd_init(struct gspca_dev *gspca_dev)
        /* setup a selector by bridge */
        reg_w1(gspca_dev, 0xf1, 0x01);
        reg_r(gspca_dev, 0x00, 1);
-        reg_w1(gspca_dev, 0xf1, gspca_dev->usb_buf[0]);
+        reg_w1(gspca_dev, 0xf1, 0x00);
        reg_r(gspca_dev, 0x00, 1);              /* get sonix chip id */
        regF1 = gspca_dev->usb_buf[0];
        if (gspca_dev->usb_err < 0)
@@ -2423,10 +2308,17 @@ static int sd_start(struct gspca_dev *gspca_dev)
 {
        struct sd *sd = (struct sd *) gspca_dev;
        int i;
-        u8 reg1, reg17;
+        u8 reg01, reg17;
+        u8 reg0102[2];
        const u8 *sn9c1xx;
        const u8 (*init)[8];
+        const u8 *reg9a;
        int mode;
+        static const u8 reg9a_def[] =
+                {0x00, 0x40, 0x20, 0x00, 0x00, 0x00};
+        static const u8 reg9a_spec[] =
+                {0x00, 0x40, 0x38, 0x30, 0x00, 0x20};
+        static const u8 regd4[] = {0x60, 0x00, 0x00};
        static const u8 C0[] = { 0x2d, 0x2d, 0x3a, 0x05, 0x04, 0x3f };
        static const u8 CA[] = { 0x28, 0xd8, 0x14, 0xec };
        static const u8 CA_adcm1700[] =
@@ -2448,7 +2340,85 @@ static int sd_start(struct gspca_dev *gspca_dev)
        /* initialize the bridge */
        sn9c1xx = sn_tb[sd->sensor];
-        bridge_init(gspca_dev, sn9c1xx);
+        /* sensor clock already enabled in sd_init */
+        /* reg_w1(gspca_dev, 0xf1, 0x00); */
+        reg01 = sn9c1xx[1];
+        if (sd->flags & PDN_INV)
+                reg01 ^= S_PDN_INV;             /* power down inverted */
+        reg_w1(gspca_dev, 0x01, reg01);
+        /* configure gpio */
+        reg0102[0] = reg01;
+        reg0102[1] = sn9c1xx[2];
+        if (gspca_dev->audio)
+                reg0102[1] |= 0x04;     /* keep the audio connection */
+        reg_w(gspca_dev, 0x01, reg0102, 2);
+        reg_w(gspca_dev, 0x08, &sn9c1xx[8], 2);
+        reg_w(gspca_dev, 0x17, &sn9c1xx[0x17], 5);
+        switch (sd->sensor) {
+        case SENSOR_GC0307:
+        case SENSOR_OV7660:
+        case SENSOR_PO1030:
+        case SENSOR_PO2030N:
+        case SENSOR_SOI768:
+        case SENSOR_SP80708:
+                reg9a = reg9a_spec;
+                break;
+        default:
+                reg9a = reg9a_def;
+                break;
+        }
+        reg_w(gspca_dev, 0x9a, reg9a, 6);
+        reg_w(gspca_dev, 0xd4, regd4, sizeof regd4);
+        reg_w(gspca_dev, 0x03, &sn9c1xx[3], 0x0f);
+        reg17 = sn9c1xx[0x17];
+        switch (sd->sensor) {
+        case SENSOR_GC0307:
+                msleep(50);             /*fixme: is it useful? */
+                break;
+        case SENSOR_OM6802:
+                msleep(10);
+                reg_w1(gspca_dev, 0x02, 0x73);
+                reg17 |= SEN_CLK_EN;
+                reg_w1(gspca_dev, 0x17, reg17);
+                reg_w1(gspca_dev, 0x01, 0x22);
+                msleep(100);
+                reg01 = SCL_SEL_OD | S_PDN_INV;
+                reg17 &= MCK_SIZE_MASK;
+                reg17 |= 0x04;          /* clock / 4 */
+                break;
+        }
+        reg01 |= SYS_SEL_48M;
+        reg_w1(gspca_dev, 0x01, reg01);
+        reg17 |= SEN_CLK_EN;
+        reg_w1(gspca_dev, 0x17, reg17);
+        reg01 &= ~S_PWR_DN;             /* sensor power on */
+        reg_w1(gspca_dev, 0x01, reg01);
+        reg01 &= ~SYS_SEL_48M;
+        reg_w1(gspca_dev, 0x01, reg01);
+        switch (sd->sensor) {
+        case SENSOR_HV7131R:
+                hv7131r_probe(gspca_dev);       /*fixme: is it useful? */
+                break;
+        case SENSOR_OM6802:
+                msleep(10);
+                reg_w1(gspca_dev, 0x01, reg01);
+                i2c_w8(gspca_dev, om6802_init0[0]);
+                i2c_w8(gspca_dev, om6802_init0[1]);
+                msleep(15);
+                reg_w1(gspca_dev, 0x02, 0x71);
+                msleep(150);
+                break;
+        case SENSOR_SP80708:
+                msleep(100);
+                reg_w1(gspca_dev, 0x02, 0x62);
+                break;
+        }
        /* initialize the sensor */
        i2c_w_seq(gspca_dev, sensor_init[sd->sensor]);
@@ -2476,30 +2446,11 @@ static int sd_start(struct gspca_dev *gspca_dev)
        }
        reg_w1(gspca_dev, 0x18, sn9c1xx[0x18]);
        switch (sd->sensor) {
-        case SENSOR_GC0307:
+        case SENSOR_OM6802:
-                reg17 = 0xa2;
+/*      case SENSOR_OV7648:             * fixme: sometimes */
-                break;
-        case SENSOR_MT9V111:
-        case SENSOR_MI0360B:
-                reg17 = 0xe0;
-                break;
-        case SENSOR_ADCM1700:
-        case SENSOR_OV7630:
-                reg17 = 0xe2;
-                break;
-        case SENSOR_OV7648:
-                reg17 = 0x20;
-                break;
-        case SENSOR_OV7660:
-        case SENSOR_SOI768:
-                reg17 = 0xa0;
-                break;
-        case SENSOR_PO1030:
-        case SENSOR_PO2030N:
-                reg17 = 0xa0;
                break;
        default:
-                reg17 = 0x60;
+                reg17 |= DEF_EN;
                break;
        }
        reg_w1(gspca_dev, 0x17, reg17);
@@ -2546,95 +2497,67 @@ static int sd_start(struct gspca_dev *gspca_dev)
        init = NULL;
        mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
-        if (mode)
+        reg01 |= SYS_SEL_48M | V_TX_EN;
-                reg1 = 0x46;    /* 320x240: clk 48Mhz, video trf enable */
+        reg17 &= ~MCK_SIZE_MASK;
-        else
+        reg17 |= 0x02;                  /* clock / 2 */
-                reg1 = 0x06;    /* 640x480: clk 24Mhz, video trf enable */
-        reg17 = 0x61;           /* 0x:20: enable sensor clock */
        switch (sd->sensor) {
        case SENSOR_ADCM1700:
                init = adcm1700_sensor_param1;
-                reg1 = 0x46;
-                reg17 = 0xe2;
                break;
        case SENSOR_GC0307:
                init = gc0307_sensor_param1;
-                reg17 = 0xa2;
+                break;
-                reg1 = 0x44;
+        case SENSOR_HV7131R:
+        case SENSOR_MI0360:
+                if (mode)
+                        reg01 |= SYS_SEL_48M;   /* 320x240: clk 48Mhz */
+                else
+                        reg01 &= ~SYS_SEL_48M;  /* 640x480: clk 24Mhz */
+                reg17 &= ~MCK_SIZE_MASK;
+                reg17 |= 0x01;                  /* clock / 1 */
                break;
        case SENSOR_MI0360B:
                init = mi0360b_sensor_param1;
-                reg1 &= ~0x02;          /* don't inverse pin S_PWR_DN */
-                reg17 = 0xe2;
                break;
        case SENSOR_MO4000:
-                if (mode) {
+                if (mode) {                     /* if 320x240 */
-/*                      reg1 = 0x46;     * 320 clk 48Mhz 60fp/s */
+                        reg01 &= ~SYS_SEL_48M;  /* clk 24Mz */
-                        reg1 = 0x06;    /* clk 24Mz */
+                        reg17 &= ~MCK_SIZE_MASK;
-                } else {
+                        reg17 |= 0x01;          /* clock / 1 */
-                        reg17 = 0x22;   /* 640 MCKSIZE */
-/*                      reg1 = 0x06;     * 640 clk 24Mz (done) */
                }
                break;
        case SENSOR_MT9V111:
                init = mt9v111_sensor_param1;
-                if (mode) {
-                        reg1 = 0x04;    /* 320 clk 48Mhz */
-                } else {
-/*                      reg1 = 0x06;     * 640 clk 24Mz (done) */
-                        reg17 = 0xc2;
-                }
                break;
        case SENSOR_OM6802:
                init = om6802_sensor_param1;
-                reg17 = 0x64;           /* 640 MCKSIZE */
+                if (!mode) {                    /* if 640x480 */
+                        reg17 &= ~MCK_SIZE_MASK;
+                        reg17 |= 0x01;          /* clock / 4 */
+                }
                break;
        case SENSOR_OV7630:
                init = ov7630_sensor_param1;
-                reg17 = 0xe2;
-                reg1 = 0x44;
                break;
        case SENSOR_OV7648:
                init = ov7648_sensor_param1;
-                reg17 = 0x21;
+                reg17 &= ~MCK_SIZE_MASK;
-/*              reg1 = 0x42;             * 42 - 46? */
+                reg17 |= 0x01;                  /* clock / 1 */
                break;
        case SENSOR_OV7660:
                init = ov7660_sensor_param1;
-                if (sd->bridge == BRIDGE_SN9C120) {
-                        if (mode) {             /* 320x240 - 160x120 */
-                                reg17 = 0xa2;
-                                reg1 = 0x44;    /* 48 Mhz, video trf eneble */
-                        }
-                } else {
-                        reg17 = 0x22;
-                        reg1 = 0x06;    /* 24 Mhz, video trf eneble
-                                         * inverse power down */
-                }
                break;
        case SENSOR_PO1030:
                init = po1030_sensor_param1;
-                reg17 = 0xa2;
-                reg1 = 0x44;
                break;
        case SENSOR_PO2030N:
                init = po2030n_sensor_param1;
-                reg1 = 0x46;
-                reg17 = 0xa2;
                break;
        case SENSOR_SOI768:
                init = soi768_sensor_param1;
-                reg1 = 0x44;
-                reg17 = 0xa2;
                break;
        case SENSOR_SP80708:
                init = sp80708_sensor_param1;
-                if (mode) {
-/*??                    reg1 = 0x04;     * 320 clk 48Mhz */
-                } else {
-                        reg1 = 0x46;     /* 640 clk 48Mz */
-                        reg17 = 0xa2;
-                }
                break;
        }
@@ -2684,7 +2607,9 @@ static int sd_start(struct gspca_dev *gspca_dev)
        setjpegqual(gspca_dev);
        reg_w1(gspca_dev, 0x17, reg17);
-        reg_w1(gspca_dev, 0x01, reg1);
+        reg_w1(gspca_dev, 0x01, reg01);
+        sd->reg01 = reg01;
+        sd->reg17 = reg17;
        sethvflip(gspca_dev);
        setbrightness(gspca_dev);
@@ -2706,41 +2631,64 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
                { 0xa1, 0x21, 0x76, 0x20, 0x00, 0x00, 0x00, 0x10 };
        static const u8 stopsoi768[] =
                { 0xa1, 0x21, 0x12, 0x80, 0x00, 0x00, 0x00, 0x10 };
-        u8 data;
+        u8 reg01;
-        const u8 *sn9c1xx;
+        u8 reg17;
-        data = 0x0b;
+        reg01 = sd->reg01;
+        reg17 = sd->reg17 & ~SEN_CLK_EN;
        switch (sd->sensor) {
+        case SENSOR_ADCM1700:
        case SENSOR_GC0307:
-                data = 0x29;
+        case SENSOR_PO2030N:
+        case SENSOR_SP80708:
+                reg01 |= LED;
+                reg_w1(gspca_dev, 0x01, reg01);
+                reg01 &= ~(LED | V_TX_EN);
+                reg_w1(gspca_dev, 0x01, reg01);
+/*              reg_w1(gspca_dev, 0x02, 0x??);   * LED off ? */
                break;
        case SENSOR_HV7131R:
+                reg01 &= ~V_TX_EN;
+                reg_w1(gspca_dev, 0x01, reg01);
                i2c_w8(gspca_dev, stophv7131);
-                data = 0x2b;
                break;
        case SENSOR_MI0360:
        case SENSOR_MI0360B:
+                reg01 &= ~V_TX_EN;
+                reg_w1(gspca_dev, 0x01, reg01);
+/*              reg_w1(gspca_dev, 0x02, 0x40);    * LED off ? */
                i2c_w8(gspca_dev, stopmi0360);
-                data = 0x29;
                break;
-        case SENSOR_OV7648:
-                i2c_w8(gspca_dev, stopov7648);
-                /* fall thru */
        case SENSOR_MT9V111:
-        case SENSOR_OV7630:
+        case SENSOR_OM6802:
        case SENSOR_PO1030:
-                data = 0x29;
+                reg01 &= ~V_TX_EN;
+                reg_w1(gspca_dev, 0x01, reg01);
+                break;
+        case SENSOR_OV7630:
+        case SENSOR_OV7648:
+                reg01 &= ~V_TX_EN;
+                reg_w1(gspca_dev, 0x01, reg01);
+                i2c_w8(gspca_dev, stopov7648);
+                break;
+        case SENSOR_OV7660:
+                reg01 &= ~V_TX_EN;
+                reg_w1(gspca_dev, 0x01, reg01);
                break;
        case SENSOR_SOI768:
                i2c_w8(gspca_dev, stopsoi768);
-                data = 0x29;
                break;
        }
-        sn9c1xx = sn_tb[sd->sensor];
-        reg_w1(gspca_dev, 0x01, sn9c1xx[1]);
+        reg01 |= SCL_SEL_OD;
-        reg_w1(gspca_dev, 0x17, sn9c1xx[0x17]);
+        reg_w1(gspca_dev, 0x01, reg01);
-        reg_w1(gspca_dev, 0x01, sn9c1xx[1]);
+        reg01 |= S_PWR_DN;              /* sensor power down */
-        reg_w1(gspca_dev, 0x01, data);
+        reg_w1(gspca_dev, 0x01, reg01);
+        reg_w1(gspca_dev, 0x17, reg17);
+        reg01 &= ~SYS_SEL_48M;          /* clock 24MHz */
+        reg_w1(gspca_dev, 0x01, reg01);
+        reg01 |= LED;
+        reg_w1(gspca_dev, 0x01, reg01);
        /* Don't disable sensor clock as that disables the button on the cam */
        /* reg_w1(gspca_dev, 0xf1, 0x01); */
 }
@@ -2954,14 +2902,18 @@ static const struct sd_desc sd_desc = {
 /* -- module initialisation -- */
 #define BS(bridge, sensor) \
        .driver_info = (BRIDGE_ ## bridge << 16) \
-                        | SENSOR_ ## sensor
+                        | (SENSOR_ ## sensor << 8)
+#define BSF(bridge, sensor, flags) \
+        .driver_info = (BRIDGE_ ## bridge << 16) \
+                        | (SENSOR_ ## sensor << 8) \
+                        | (flags)
 static const __devinitdata struct usb_device_id device_table[] = {
 #if !defined CONFIG_USB_SN9C102 && !defined CONFIG_USB_SN9C102_MODULE
        {USB_DEVICE(0x0458, 0x7025), BS(SN9C120, MI0360)},
        {USB_DEVICE(0x0458, 0x702e), BS(SN9C120, OV7660)},
 #endif
-        {USB_DEVICE(0x045e, 0x00f5), BS(SN9C105, OV7660)},
+        {USB_DEVICE(0x045e, 0x00f5), BSF(SN9C105, OV7660, PDN_INV)},
-        {USB_DEVICE(0x045e, 0x00f7), BS(SN9C105, OV7660)},
+        {USB_DEVICE(0x045e, 0x00f7), BSF(SN9C105, OV7660, PDN_INV)},
        {USB_DEVICE(0x0471, 0x0327), BS(SN9C105, MI0360)},
        {USB_DEVICE(0x0471, 0x0328), BS(SN9C105, MI0360)},
        {USB_DEVICE(0x0471, 0x0330), BS(SN9C105, MI0360)},
diff --git a/drivers/media/video/imx074.c b/drivers/media/video/imx074.c
index 380e459f899d..27b5dfdfbb93 100644
--- a/drivers/media/video/imx074.c
+++ b/drivers/media/video/imx074.c
@@ -451,7 +451,6 @@ static int imx074_probe(struct i2c_client *client,
        ret = imx074_video_probe(icd, client);
        if (ret < 0) {
                icd->ops = NULL;
-                i2c_set_clientdata(client, NULL);
                kfree(priv);
                return ret;
        }
@@ -468,7 +467,6 @@ static int imx074_remove(struct i2c_client *client)
        icd->ops = NULL;
        if (icl->free_bus)
                icl->free_bus(icl);
-        i2c_set_clientdata(client, NULL);
        client->driver = NULL;
        kfree(priv);
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c
index 5a000c65ae98..ce4a75375909 100644
--- a/drivers/media/video/ir-kbd-i2c.c
+++ b/drivers/media/video/ir-kbd-i2c.c
@@ -44,7 +44,6 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
-#include <linux/i2c-id.h>
 #include <linux/workqueue.h>
 #include <media/ir-core.h>
diff --git a/drivers/media/video/ivtv/ivtv-i2c.c b/drivers/media/video/ivtv/ivtv-i2c.c
index 9e8039ac909e..665191c9b407 100644
--- a/drivers/media/video/ivtv/ivtv-i2c.c
+++ b/drivers/media/video/ivtv/ivtv-i2c.c
@@ -239,19 +239,16 @@ int ivtv_i2c_register(struct ivtv *itv, unsigned idx)
                return -1;
        if (hw == IVTV_HW_TUNER) {
                /* special tuner handling */
-                sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
+                sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
-                                adap, NULL, type,
+                                itv->card_i2c->radio);
-                                0, itv->card_i2c->radio);
                if (sd)
                        sd->grp_id = 1 << idx;
-                sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
+                sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
-                                adap, NULL, type,
+                                itv->card_i2c->demod);
-                                0, itv->card_i2c->demod);
                if (sd)
                        sd->grp_id = 1 << idx;
-                sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
+                sd = v4l2_i2c_new_subdev(&itv->v4l2_dev, adap, type, 0,
-                                adap, NULL, type,
+                                itv->card_i2c->tv);
-                                0, itv->card_i2c->tv);
                if (sd)
                        sd->grp_id = 1 << idx;
                return sd ? 0 : -1;
@@ -267,17 +264,16 @@ int ivtv_i2c_register(struct ivtv *itv, unsigned idx)
        /* It's an I2C device other than an analog tuner or IR chip */
        if (hw == IVTV_HW_UPD64031A || hw == IVTV_HW_UPD6408X) {
                sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
-                                adap, NULL, type, 0, I2C_ADDRS(hw_addrs[idx]));
+                                adap, type, 0, I2C_ADDRS(hw_addrs[idx]));
        } else if (hw == IVTV_HW_CX25840) {
                struct cx25840_platform_data pdata;
                pdata.pvr150_workaround = itv->pvr150_workaround;
                sd = v4l2_i2c_new_subdev_cfg(&itv->v4l2_dev,
-                                adap, NULL, type, 0, &pdata, hw_addrs[idx],
+                                adap, type, 0, &pdata, hw_addrs[idx], NULL);
-                                NULL);
        } else {
                sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
-                                adap, NULL, type, hw_addrs[idx], NULL);
+                                adap, type, hw_addrs[idx], NULL);
        }
        if (sd)
                sd->grp_id = 1 << idx;
diff --git a/drivers/media/video/meye.c b/drivers/media/video/meye.c
index 2be23bccd3c8..48d2c2419c13 100644
--- a/drivers/media/video/meye.c
+++ b/drivers/media/video/meye.c
@@ -1659,7 +1659,7 @@ static const struct v4l2_file_operations meye_fops = {
        .open           = meye_open,
        .release        = meye_release,
        .mmap           = meye_mmap,
-        .ioctl          = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
        .poll           = meye_poll,
 };
@@ -1831,12 +1831,6 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
        msleep(1);
        mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
-        if (video_register_device(meye.vdev, VFL_TYPE_GRABBER,
-                                  video_nr) < 0) {
-                v4l2_err(v4l2_dev, "video_register_device failed\n");
-                goto outvideoreg;
-        }
        mutex_init(&meye.lock);
        init_waitqueue_head(&meye.proc_list);
        meye.brightness = 32 << 10;
@@ -1858,6 +1852,12 @@ static int __devinit meye_probe(struct pci_dev *pcidev,
        sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE, 0);
        sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC, 48);
+        if (video_register_device(meye.vdev, VFL_TYPE_GRABBER,
+                                  video_nr) < 0) {
+                v4l2_err(v4l2_dev, "video_register_device failed\n");
+                goto outvideoreg;
+        }
        v4l2_info(v4l2_dev, "Motion Eye Camera Driver v%s.\n",
               MEYE_DRIVER_VERSION);
        v4l2_info(v4l2_dev, "mchip KL5A72002 rev. %d, base %lx, irq %d\n",
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index 4a27862da30d..072bd2d1cfad 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -31,6 +31,7 @@
 #include <media/v4l2-common.h>
 #include <media/v4l2-dev.h>
+#include <media/videobuf-core.h>
 #include <media/videobuf-dma-contig.h>
 #include <media/soc_camera.h>
 #include <media/soc_mediabus.h>
@@ -903,8 +904,6 @@ static int mx2_camera_set_crop(struct soc_camera_device *icd,
 static int mx2_camera_set_fmt(struct soc_camera_device *icd,
                               struct v4l2_format *f)
 {
-        struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
-        struct mx2_camera_dev *pcdev = ici->priv;
        struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
        const struct soc_camera_format_xlate *xlate;
        struct v4l2_pix_format *pix = &f->fmt.pix;
@@ -943,8 +942,6 @@ static int mx2_camera_set_fmt(struct soc_camera_device *icd,
 static int mx2_camera_try_fmt(struct soc_camera_device *icd,
                                  struct v4l2_format *f)
 {
-        struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
-        struct mx2_camera_dev *pcdev = ici->priv;
        struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
        const struct soc_camera_format_xlate *xlate;
        struct v4l2_pix_format *pix = &f->fmt.pix;
@@ -1024,13 +1021,13 @@ static int mx2_camera_querycap(struct soc_camera_host *ici,
        return 0;
 }
-static int mx2_camera_reqbufs(struct soc_camera_file *icf,
+static int mx2_camera_reqbufs(struct soc_camera_device *icd,
                              struct v4l2_requestbuffers *p)
 {
        int i;
        for (i = 0; i < p->count; i++) {
-                struct mx2_buffer *buf = container_of(icf->vb_vidq.bufs[i],
+                struct mx2_buffer *buf = container_of(icd->vb_vidq.bufs[i],
                                                      struct mx2_buffer, vb);
                INIT_LIST_HEAD(&buf->vb.queue);
        }
@@ -1151,9 +1148,9 @@ err_out:
 static unsigned int mx2_camera_poll(struct file *file, poll_table *pt)
 {
-        struct soc_camera_file *icf = file->private_data;
+        struct soc_camera_device *icd = file->private_data;
-        return videobuf_poll_stream(file, &icf->vb_vidq, pt);
+        return videobuf_poll_stream(file, &icd->vb_vidq, pt);
 }
 static struct soc_camera_host_ops mx2_soc_camera_host_ops = {
diff --git a/drivers/media/video/mx3_camera.c b/drivers/media/video/mx3_camera.c
index 29c5fc348133..aa871c2936b3 100644
--- a/drivers/media/video/mx3_camera.c
+++ b/drivers/media/video/mx3_camera.c
@@ -27,6 +27,7 @@
 #include <mach/ipu.h>
 #include <mach/mx3_camera.h>
+#include <mach/dma.h>
 #define MX3_CAM_DRV_NAME "mx3-camera"
@@ -638,6 +639,9 @@ static bool chan_filter(struct dma_chan *chan, void *arg)
        struct dma_chan_request *rq = arg;
        struct mx3_camera_pdata *pdata;
+        if (!imx_dma_is_ipu(chan))
+                return false;
        if (!rq)
                return false;
diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index 94ba698d0ad4..4e8fd965f151 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -185,17 +185,17 @@ static int mxb_probe(struct saa7146_dev *dev)
        }
        mxb->saa7111a = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-                        NULL, "saa7111", I2C_SAA7111A, NULL);
+                        "saa7111", I2C_SAA7111A, NULL);
        mxb->tea6420_1 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-                        NULL, "tea6420", I2C_TEA6420_1, NULL);
+                        "tea6420", I2C_TEA6420_1, NULL);
        mxb->tea6420_2 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-                        NULL, "tea6420", I2C_TEA6420_2, NULL);
+                        "tea6420", I2C_TEA6420_2, NULL);
        mxb->tea6415c = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-                        NULL, "tea6415c", I2C_TEA6415C, NULL);
+                        "tea6415c", I2C_TEA6415C, NULL);
        mxb->tda9840 = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-                        NULL, "tda9840", I2C_TDA9840, NULL);
+                        "tda9840", I2C_TDA9840, NULL);
        mxb->tuner = v4l2_i2c_new_subdev(&dev->v4l2_dev, &mxb->i2c_adapter,
-                        NULL, "tuner", I2C_TUNER, NULL);
+                        "tuner", I2C_TUNER, NULL);
        /* check if all devices are present */
        if (!mxb->tea6420_1 || !mxb->tea6420_2 || !mxb->tea6415c ||
diff --git a/drivers/media/video/omap1_camera.c b/drivers/media/video/omap1_camera.c
index 7c30e62b50db..cbfd07f2d9da 100644
--- a/drivers/media/video/omap1_camera.c
+++ b/drivers/media/video/omap1_camera.c
@@ -235,7 +235,7 @@ static void free_buffer(struct videobuf_queue *vq, struct omap1_cam_buf *buf,
        BUG_ON(in_interrupt());
-        videobuf_waiton(vb, 0, 0);
+        videobuf_waiton(vq, vb, 0, 0);
        if (vb_mode == OMAP1_CAM_DMA_CONTIG) {
                videobuf_dma_contig_free(vq, vb);
@@ -504,7 +504,7 @@ static void omap1_videobuf_queue(struct videobuf_queue *vq,
                 * empty. Since the transfer of the DMA programming register set
                 * content to the DMA working register set is done automatically
                 * by the DMA hardware, this can pretty well happen while we
-                 * are keeping the lock here. Levae fetching it from the queue
+                 * are keeping the lock here. Leave fetching it from the queue
                 * to be done when a next DMA interrupt occures instead.
                 */
                return;
@@ -1365,12 +1365,12 @@ static void omap1_cam_init_videobuf(struct videobuf_queue *q,
                videobuf_queue_dma_contig_init(q, &omap1_videobuf_ops,
                                icd->dev.parent, &pcdev->lock,
                                V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
-                                sizeof(struct omap1_cam_buf), icd);
+                                sizeof(struct omap1_cam_buf), icd, NULL);
        else
                videobuf_queue_sg_init(q, &omap1_videobuf_ops,
                                icd->dev.parent, &pcdev->lock,
                                V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_NONE,
-                                sizeof(struct omap1_cam_buf), icd);
+                                sizeof(struct omap1_cam_buf), icd, NULL);
        /* use videobuf mode (auto)selected with the module parameter */
        pcdev->vb_mode = sg_mode ? OMAP1_CAM_DMA_SG : OMAP1_CAM_DMA_CONTIG;
@@ -1386,7 +1386,7 @@ static void omap1_cam_init_videobuf(struct videobuf_queue *q,
        }
 }
-static int omap1_cam_reqbufs(struct soc_camera_file *icf,
+static int omap1_cam_reqbufs(struct soc_camera_device *icd,
                              struct v4l2_requestbuffers *p)
 {
        int i;
@@ -1398,7 +1398,7 @@ static int omap1_cam_reqbufs(struct soc_camera_file *icf,
         * it hadn't triggered
         */
        for (i = 0; i < p->count; i++) {
-                struct omap1_cam_buf *buf = container_of(icf->vb_vidq.bufs[i],
+                struct omap1_cam_buf *buf = container_of(icd->vb_vidq.bufs[i],
                                                      struct omap1_cam_buf, vb);
                buf->inwork = 0;
                INIT_LIST_HEAD(&buf->vb.queue);
@@ -1485,10 +1485,10 @@ static int omap1_cam_set_bus_param(struct soc_camera_device *icd,
 static unsigned int omap1_cam_poll(struct file *file, poll_table *pt)
 {
-        struct soc_camera_file *icf = file->private_data;
+        struct soc_camera_device *icd = file->private_data;
        struct omap1_cam_buf *buf;
-        buf = list_entry(icf->vb_vidq.stream.next, struct omap1_cam_buf,
+        buf = list_entry(icd->vb_vidq.stream.next, struct omap1_cam_buf,
                         vb.stream);
        poll_wait(file, &buf->vb.done, pt);
diff --git a/drivers/media/video/ov6650.c b/drivers/media/video/ov6650.c
index b7cfeab0948c..cf93de988068 100644
--- a/drivers/media/video/ov6650.c
+++ b/drivers/media/video/ov6650.c
@@ -754,7 +754,7 @@ static int ov6650_g_fmt(struct v4l2_subdev *sd,
 static bool is_unscaled_ok(int width, int height, struct v4l2_rect *rect)
 {
-        return (width > rect->width >> 1 || height > rect->height >> 1);
+        return width > rect->width >> 1 || height > rect->height >> 1;
 }
 static u8 to_clkrc(struct v4l2_fract *timeperframe,
@@ -840,8 +840,6 @@ static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf)
                coma_mask |= COMA_BW | COMA_BYTE_SWAP | COMA_WORD_SWAP;
                coma_set |= COMA_RAW_RGB | COMA_RGB;
                break;
-        case 0:
-                break;
        default:
                dev_err(&client->dev, "Pixel format not handled: 0x%x\n", code);
                return -EINVAL;
@@ -1176,7 +1174,6 @@ static int ov6650_probe(struct i2c_client *client,
        if (ret) {
                icd->ops = NULL;
-                i2c_set_clientdata(client, NULL);
                kfree(priv);
        }
@@ -1187,7 +1184,6 @@ static int ov6650_remove(struct i2c_client *client)
 {
        struct ov6650 *priv = to_ov6650(client);
-        i2c_set_clientdata(client, NULL);
        kfree(priv);
        return 0;
 }
diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c
index 7129b50757db..7551907f8c28 100644
--- a/drivers/media/video/pms.c
+++ b/drivers/media/video/pms.c
@@ -932,7 +932,7 @@ static ssize_t pms_read(struct file *file, char __user *buf,
 static const struct v4l2_file_operations pms_fops = {
        .owner          = THIS_MODULE,
-        .ioctl          = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
        .read           = pms_read,
 };
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index bef202752cc8..66ad516bdfd9 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -2088,16 +2088,14 @@ static int pvr2_hdw_load_subdev(struct pvr2_hdw *hdw,
                           " Setting up with specified i2c address 0x%x",
                           mid, i2caddr[0]);
                sd = v4l2_i2c_new_subdev(&hdw->v4l2_dev, &hdw->i2c_adap,
-                                         NULL, fname,
+                                         fname, i2caddr[0], NULL);
-                                         i2caddr[0], NULL);
        } else {
                pvr2_trace(PVR2_TRACE_INIT,
                           "Module ID %u:"
                           " Setting up with address probe list",
                           mid);
                sd = v4l2_i2c_new_subdev(&hdw->v4l2_dev, &hdw->i2c_adap,
-                                                NULL, fname,
+                                         fname, 0, i2caddr);
-                                                0, i2caddr);
        }
        if (!sd) {
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c
index e62beb4efdb4..f3dc89da4c4e 100644
--- a/drivers/media/video/pwc/pwc-if.c
+++ b/drivers/media/video/pwc/pwc-if.c
@@ -62,7 +62,6 @@
 #include <linux/module.h>
 #include <linux/poll.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #ifdef CONFIG_USB_PWC_INPUT_EVDEV
 #include <linux/usb/input.h>
 #endif
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index f5a46c458717..a845753665c1 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -49,7 +49,6 @@
 #include <linux/videodev2.h>
 #include <linux/version.h>
 #include <linux/mm.h>
-#include <linux/smp_lock.h>
 #include <media/videobuf-vmalloc.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-device.h>
diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c
index e8f13d3e2df1..1b93207c89e8 100644
--- a/drivers/media/video/s5p-fimc/fimc-capture.c
+++ b/drivers/media/video/s5p-fimc/fimc-capture.c
@@ -44,7 +44,7 @@ static struct v4l2_subdev *fimc_subdev_register(struct fimc_dev *fimc,
                return ERR_PTR(-ENOMEM);
        sd = v4l2_i2c_new_subdev_board(&vid_cap->v4l2_dev, i2c_adap,
-                                       MODULE_NAME, isp_info->board_info, NULL);
+                                       isp_info->board_info, NULL);
        if (!sd) {
                v4l2_err(&vid_cap->v4l2_dev, "failed to acquire subdev\n");
                return NULL;
diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c
index 10a6cbf6a790..1d4d0a49ea52 100644
--- a/drivers/media/video/saa7134/saa7134-cards.c
+++ b/drivers/media/video/saa7134/saa7134-cards.c
@@ -6661,6 +6661,18 @@ struct pci_device_id saa7134_pci_tbl[] = {
                .subdevice    = 0x2804,
                .driver_data  = SAA7134_BOARD_TECHNOTREND_BUDGET_T3000,
        }, {
+                .vendor       = PCI_VENDOR_ID_PHILIPS,
+                .device       = PCI_DEVICE_ID_PHILIPS_SAA7133,
+                .subvendor    = 0x5ace, /* Beholder Intl. Ltd. */
+                .subdevice    = 0x7190,
+                .driver_data  = SAA7134_BOARD_BEHOLD_H7,
+        }, {
+                .vendor       = PCI_VENDOR_ID_PHILIPS,
+                .device       = PCI_DEVICE_ID_PHILIPS_SAA7133,
+                .subvendor    = 0x5ace, /* Beholder Intl. Ltd. */
+                .subdevice    = 0x7090,
+                .driver_data  = SAA7134_BOARD_BEHOLD_A7,
+        }, {
                /* --- boards without eeprom + subsystem ID --- */
                .vendor       = PCI_VENDOR_ID_PHILIPS,
                .device       = PCI_DEVICE_ID_PHILIPS_SAA7134,
@@ -6698,18 +6710,6 @@ struct pci_device_id saa7134_pci_tbl[] = {
                .subvendor    = PCI_ANY_ID,
                .subdevice    = PCI_ANY_ID,
                .driver_data  = SAA7134_BOARD_UNKNOWN,
-        }, {
-                .vendor       = PCI_VENDOR_ID_PHILIPS,
-                .device       = PCI_DEVICE_ID_PHILIPS_SAA7133,
-                .subvendor    = 0x5ace, /* Beholder Intl. Ltd. */
-                .subdevice    = 0x7190,
-                .driver_data  = SAA7134_BOARD_BEHOLD_H7,
-        }, {
-                .vendor       = PCI_VENDOR_ID_PHILIPS,
-                .device       = PCI_DEVICE_ID_PHILIPS_SAA7133,
-                .subvendor    = 0x5ace, /* Beholder Intl. Ltd. */
-                .subdevice    = 0x7090,
-                .driver_data  = SAA7134_BOARD_BEHOLD_A7,
        },{
                /* --- end of list --- */
        }
@@ -7551,22 +7551,22 @@ int saa7134_board_init2(struct saa7134_dev *dev)
                   so we do not need to probe for a radio tuner device. */
                if (dev->radio_type != UNSET)
                        v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                                &dev->i2c_adap, NULL, "tuner",
+                                &dev->i2c_adap, "tuner",
                                dev->radio_addr, NULL);
                if (has_demod)
                        v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                                &dev->i2c_adap, NULL, "tuner",
+                                &dev->i2c_adap, "tuner",
                                0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
                if (dev->tuner_addr == ADDR_UNSET) {
                        enum v4l2_i2c_tuner_type type =
                                has_demod ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
                        v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                                &dev->i2c_adap, NULL, "tuner",
+                                &dev->i2c_adap, "tuner",
                                0, v4l2_i2c_tuner_addrs(type));
                } else {
                        v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                                &dev->i2c_adap, NULL, "tuner",
+                                &dev->i2c_adap, "tuner",
                                dev->tuner_addr, NULL);
                }
        }
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 764d7d219fed..756a27812260 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -991,7 +991,7 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
        if (card_is_empress(dev)) {
                struct v4l2_subdev *sd =
                        v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
-                                NULL, "saa6752hs",
+                                "saa6752hs",
                                saa7134_boards[dev->board].empress_addr, NULL);
                if (sd)
@@ -1002,7 +1002,7 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
                struct v4l2_subdev *sd;
                sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
-                                &dev->i2c_adap, NULL, "saa6588",
+                                &dev->i2c_adap, "saa6588",
                                0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
                if (sd) {
                        printk(KERN_INFO "%s: found RDS decoder\n", dev->name);
diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index 1467a30a434f..b890aafe7d64 100644
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -21,7 +21,6 @@
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/smp_lock.h>
 #include <linux/delay.h>
 #include "saa7134-reg.h"
diff --git a/drivers/media/video/saa7164/saa7164.h b/drivers/media/video/saa7164/saa7164.h
index 1d9c5cbbbc52..041ae8e20f68 100644
--- a/drivers/media/video/saa7164/saa7164.h
+++ b/drivers/media/video/saa7164/saa7164.h
@@ -58,7 +58,6 @@
 #include <media/tveeprom.h>
 #include <media/videobuf-dma-sg.h>
 #include <media/videobuf-dvb.h>
-#include <linux/smp_lock.h>
 #include <dvb_demux.h>
 #include <dvb_frontend.h>
 #include <dvb_net.h>
diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c
index 41d0166c0f95..41360d7c3e96 100644
--- a/drivers/media/video/se401.c
+++ b/drivers/media/video/se401.c
@@ -31,7 +31,6 @@ static const char version[] = "0.24";
 #include <linux/init.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/pagemap.h>
 #include <linux/usb.h>
 #include "se401.h"
@@ -951,9 +950,9 @@ static int se401_open(struct file *file)
        struct usb_se401 *se401 = (struct usb_se401 *)dev;
        int err = 0;
-        lock_kernel();
+        mutex_lock(&se401->lock);
        if (se401->user) {
-                unlock_kernel();
+                mutex_unlock(&se401->lock);
                return -EBUSY;
        }
        se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES);
@@ -962,7 +961,7 @@ static int se401_open(struct file *file)
        else
                err = -ENOMEM;
        se401->user = !err;
-        unlock_kernel();
+        mutex_unlock(&se401->lock);
        return err;
 }
diff --git a/drivers/media/video/sh_vou.c b/drivers/media/video/sh_vou.c
index 0f4906136b8f..07cf0c6c7c1f 100644
--- a/drivers/media/video/sh_vou.c
+++ b/drivers/media/video/sh_vou.c
@@ -75,6 +75,7 @@ struct sh_vou_device {
        int pix_idx;
        struct videobuf_buffer *active;
        enum sh_vou_status status;
+        struct mutex fop_lock;
 };
 struct sh_vou_file {
@@ -235,7 +236,7 @@ static void free_buffer(struct videobuf_queue *vq, struct videobuf_buffer *vb)
        vb->state = VIDEOBUF_NEEDS_INIT;
 }
-/* Locking: caller holds vq->vb_lock mutex */
+/* Locking: caller holds fop_lock mutex */
 static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count,
                            unsigned int *size)
 {
@@ -257,7 +258,7 @@ static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count,
        return 0;
 }
-/* Locking: caller holds vq->vb_lock mutex */
+/* Locking: caller holds fop_lock mutex */
 static int sh_vou_buf_prepare(struct videobuf_queue *vq,
                              struct videobuf_buffer *vb,
                              enum v4l2_field field)
@@ -306,7 +307,7 @@ static int sh_vou_buf_prepare(struct videobuf_queue *vq,
        return 0;
 }
-/* Locking: caller holds vq->vb_lock mutex and vq->irqlock spinlock */
+/* Locking: caller holds fop_lock mutex and vq->irqlock spinlock */
 static void sh_vou_buf_queue(struct videobuf_queue *vq,
                             struct videobuf_buffer *vb)
 {
@@ -1190,7 +1191,7 @@ static int sh_vou_open(struct file *file)
                                       V4L2_BUF_TYPE_VIDEO_OUTPUT,
                                       V4L2_FIELD_NONE,
                                       sizeof(struct videobuf_buffer), vdev,
-                                       NULL);
+                                       &vou_dev->fop_lock);
        return 0;
 }
@@ -1292,7 +1293,7 @@ static const struct v4l2_file_operations sh_vou_fops = {
        .owner          = THIS_MODULE,
        .open           = sh_vou_open,
        .release        = sh_vou_release,
-        .ioctl          = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
        .mmap           = sh_vou_mmap,
        .poll           = sh_vou_poll,
 };
@@ -1331,6 +1332,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev)
        INIT_LIST_HEAD(&vou_dev->queue);
        spin_lock_init(&vou_dev->lock);
+        mutex_init(&vou_dev->fop_lock);
        atomic_set(&vou_dev->use_count, 0);
        vou_dev->pdata = vou_pdata;
        vou_dev->status = SH_VOU_IDLE;
@@ -1388,6 +1390,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev)
                vdev->tvnorms |= V4L2_STD_PAL;
        vdev->v4l2_dev = &vou_dev->v4l2_dev;
        vdev->release = video_device_release;
+        vdev->lock = &vou_dev->fop_lock;
        vou_dev->vdev = vdev;
        video_set_drvdata(vdev, vou_dev);
@@ -1406,7 +1409,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev)
                goto ereset;
        subdev = v4l2_i2c_new_subdev_board(&vou_dev->v4l2_dev, i2c_adap,
-                        NULL, vou_pdata->board_info, NULL);
+                        vou_pdata->board_info, NULL);
        if (!subdev) {
                ret = -ENOMEM;
                goto ei2cnd;
diff --git a/drivers/media/video/sn9c102/sn9c102_core.c b/drivers/media/video/sn9c102/sn9c102_core.c
index 28e19daadec9..f49fbfb7dc13 100644
--- a/drivers/media/video/sn9c102/sn9c102_core.c
+++ b/drivers/media/video/sn9c102/sn9c102_core.c
@@ -3238,7 +3238,7 @@ static const struct v4l2_file_operations sn9c102_fops = {
        .owner = THIS_MODULE,
        .open = sn9c102_open,
        .release = sn9c102_release,
-        .ioctl = sn9c102_ioctl,
+        .unlocked_ioctl = sn9c102_ioctl,
        .read = sn9c102_read,
        .poll = sn9c102_poll,
        .mmap = sn9c102_mmap,
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c
index 43848a751d11..335120c2021b 100644
--- a/drivers/media/video/soc_camera.c
+++ b/drivers/media/video/soc_camera.c
@@ -896,7 +896,7 @@ static int soc_camera_init_i2c(struct soc_camera_device *icd,
        icl->board_info->platform_data = icd;
        subdev = v4l2_i2c_new_subdev_board(&ici->v4l2_dev, adap,
-                                NULL, icl->board_info, NULL);
+                                icl->board_info, NULL);
        if (!subdev)
                goto ei2cnd;
diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c
index f07a0f6b71c4..b5afe5f841ce 100644
--- a/drivers/media/video/stk-webcam.c
+++ b/drivers/media/video/stk-webcam.c
@@ -27,7 +27,6 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/usb.h>
 #include <linux/mm.h>
@@ -673,14 +672,11 @@ static int v4l_stk_open(struct file *fp)
        vdev = video_devdata(fp);
        dev = vdev_to_camera(vdev);
-        lock_kernel();
        if (dev == NULL || !is_present(dev)) {
-                unlock_kernel();
                return -ENXIO;
        }
        fp->private_data = dev;
        usb_autopm_get_interface(dev->interface);
-        unlock_kernel();
        return 0;
 }
diff --git a/drivers/media/video/tlg2300/pd-main.c b/drivers/media/video/tlg2300/pd-main.c
index 4555f4a5f4c8..c91424c0c135 100644
--- a/drivers/media/video/tlg2300/pd-main.c
+++ b/drivers/media/video/tlg2300/pd-main.c
@@ -36,7 +36,6 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/firmware.h>
-#include <linux/smp_lock.h>
 #include "vendorcmds.h"
 #include "pd-common.h"
@@ -485,15 +484,11 @@ static void poseidon_disconnect(struct usb_interface *interface)
        /*unregister v4l2 device */
        v4l2_device_unregister(&pd->v4l2_dev);
-        lock_kernel();
+        pd_dvb_usb_device_exit(pd);
-        {
+        poseidon_fm_exit(pd);
-                pd_dvb_usb_device_exit(pd);
-                poseidon_fm_exit(pd);
-                poseidon_audio_free(pd);
+        poseidon_audio_free(pd);
-                pd_video_exit(pd);
+        pd_video_exit(pd);
-        }
-        unlock_kernel();
        usb_set_intfdata(interface, NULL);
        kref_put(&pd->kref, poseidon_delete);
diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c
index 5d6fd01f918a..dc17cce2fbb6 100644
--- a/drivers/media/video/usbvideo/vicam.c
+++ b/drivers/media/video/usbvideo/vicam.c
@@ -43,7 +43,6 @@
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/mutex.h>
 #include <linux/firmware.h>
 #include <linux/ihex.h>
@@ -483,29 +482,28 @@ vicam_open(struct file *file)
                return -EINVAL;
        }
-        /* the videodev_lock held above us protects us from
+        /* cam_lock/open_count protects us from simultaneous opens
-         * simultaneous opens...for now. we probably shouldn't
+         * ... for now. we probably shouldn't rely on this fact forever.
-         * rely on this fact forever.
         */
-        lock_kernel();
+        mutex_lock(&cam->cam_lock);
        if (cam->open_count > 0) {
                printk(KERN_INFO
                       "vicam_open called on already opened camera");
-                unlock_kernel();
+                mutex_unlock(&cam->cam_lock);
                return -EBUSY;
        }
        cam->raw_image = kmalloc(VICAM_MAX_READ_SIZE, GFP_KERNEL);
        if (!cam->raw_image) {
-                unlock_kernel();
+                mutex_unlock(&cam->cam_lock);
                return -ENOMEM;
        }
        cam->framebuf = rvmalloc(VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
        if (!cam->framebuf) {
                kfree(cam->raw_image);
-                unlock_kernel();
+                mutex_unlock(&cam->cam_lock);
                return -ENOMEM;
        }
@@ -513,10 +511,17 @@ vicam_open(struct file *file)
        if (!cam->cntrlbuf) {
                kfree(cam->raw_image);
                rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
-                unlock_kernel();
+                mutex_unlock(&cam->cam_lock);
                return -ENOMEM;
        }
+        cam->needsDummyRead = 1;
+        cam->open_count++;
+        file->private_data = cam;
+        mutex_unlock(&cam->cam_lock);
        // First upload firmware, then turn the camera on
        if (!cam->is_initialized) {
@@ -527,12 +532,6 @@ vicam_open(struct file *file)
        set_camera_power(cam, 1);
-        cam->needsDummyRead = 1;
-        cam->open_count++;
-        file->private_data = cam;
-        unlock_kernel();
        return 0;
 }
diff --git a/drivers/media/video/usbvision/usbvision-i2c.c b/drivers/media/video/usbvision/usbvision-i2c.c
index e3bbae26e3ce..81dd53bb5267 100644
--- a/drivers/media/video/usbvision/usbvision-i2c.c
+++ b/drivers/media/video/usbvision/usbvision-i2c.c
@@ -251,7 +251,7 @@ int usbvision_i2c_register(struct usb_usbvision *usbvision)
                   hit-and-miss. */
                mdelay(10);
                v4l2_i2c_new_subdev(&usbvision->v4l2_dev,
-                                &usbvision->i2c_adap, NULL,
+                                &usbvision->i2c_adap,
                                "saa7115_auto", 0, saa711x_addrs);
                break;
        }
@@ -261,14 +261,14 @@ int usbvision_i2c_register(struct usb_usbvision *usbvision)
                struct tuner_setup tun_setup;
                sd = v4l2_i2c_new_subdev(&usbvision->v4l2_dev,
-                                &usbvision->i2c_adap, NULL,
+                                &usbvision->i2c_adap,
                                "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_DEMOD));
                /* depending on whether we found a demod or not, select
                   the tuner type. */
                type = sd ? ADDRS_TV_WITH_DEMOD : ADDRS_TV;
                sd = v4l2_i2c_new_subdev(&usbvision->v4l2_dev,
-                                &usbvision->i2c_adap, NULL,
+                                &usbvision->i2c_adap,
                                "tuner", 0, v4l2_i2c_tuner_addrs(type));
                if (sd == NULL)
diff --git a/drivers/media/video/usbvision/usbvision-video.c b/drivers/media/video/usbvision/usbvision-video.c
index db6b828594f5..011c0c386995 100644
--- a/drivers/media/video/usbvision/usbvision-video.c
+++ b/drivers/media/video/usbvision/usbvision-video.c
@@ -50,7 +50,6 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/vmalloc.h>
diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c
index f169f7736677..59f8a9ad3796 100644
--- a/drivers/media/video/uvc/uvc_ctrl.c
+++ b/drivers/media/video/uvc/uvc_ctrl.c
@@ -785,7 +785,7 @@ static void __uvc_find_control(struct uvc_entity *entity, __u32 v4l2_id,
        }
 }
-struct uvc_control *uvc_find_control(struct uvc_video_chain *chain,
+static struct uvc_control *uvc_find_control(struct uvc_video_chain *chain,
        __u32 v4l2_id, struct uvc_control_mapping **mapping)
 {
        struct uvc_control *ctrl = NULL;
@@ -944,6 +944,52 @@ done:
        return ret;
 }
+/*
+ * Mapping V4L2 controls to UVC controls can be straighforward if done well.
+ * Most of the UVC controls exist in V4L2, and can be mapped directly. Some
+ * must be grouped (for instance the Red Balance, Blue Balance and Do White
+ * Balance V4L2 controls use the White Balance Component UVC control) or
+ * otherwise translated. The approach we take here is to use a translation
+ * table for the controls that can be mapped directly, and handle the others
+ * manually.
+ */
+int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
+        struct v4l2_querymenu *query_menu)
+{
+        struct uvc_menu_info *menu_info;
+        struct uvc_control_mapping *mapping;
+        struct uvc_control *ctrl;
+        u32 index = query_menu->index;
+        u32 id = query_menu->id;
+        int ret;
+        memset(query_menu, 0, sizeof(*query_menu));
+        query_menu->id = id;
+        query_menu->index = index;
+        ret = mutex_lock_interruptible(&chain->ctrl_mutex);
+        if (ret < 0)
+                return -ERESTARTSYS;
+        ctrl = uvc_find_control(chain, query_menu->id, &mapping);
+        if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU) {
+                ret = -EINVAL;
+                goto done;
+        }
+        if (query_menu->index >= mapping->menu_count) {
+                ret = -EINVAL;
+                goto done;
+        }
+        menu_info = &mapping->menu_info[query_menu->index];
+        strlcpy(query_menu->name, menu_info->name, sizeof query_menu->name);
+done:
+        mutex_unlock(&chain->ctrl_mutex);
+        return ret;
+}
 /* --------------------------------------------------------------------------
 * Control transactions
diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c
index ed6d5449741c..f14581bd707f 100644
--- a/drivers/media/video/uvc/uvc_queue.c
+++ b/drivers/media/video/uvc/uvc_queue.c
@@ -90,6 +90,39 @@ void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type,
 }
 /*
+ * Free the video buffers.
+ *
+ * This function must be called with the queue lock held.
+ */
+static int __uvc_free_buffers(struct uvc_video_queue *queue)
+{
+        unsigned int i;
+        for (i = 0; i < queue->count; ++i) {
+                if (queue->buffer[i].vma_use_count != 0)
+                        return -EBUSY;
+        }
+        if (queue->count) {
+                vfree(queue->mem);
+                queue->count = 0;
+        }
+        return 0;
+}
+int uvc_free_buffers(struct uvc_video_queue *queue)
+{
+        int ret;
+        mutex_lock(&queue->mutex);
+        ret = __uvc_free_buffers(queue);
+        mutex_unlock(&queue->mutex);
+        return ret;
+}
+/*
 * Allocate the video buffers.
 *
 * Pages are reserved to make sure they will not be swapped, as they will be
@@ -110,7 +143,7 @@ int uvc_alloc_buffers(struct uvc_video_queue *queue, unsigned int nbuffers,
        mutex_lock(&queue->mutex);
-        if ((ret = uvc_free_buffers(queue)) < 0)
+        if ((ret = __uvc_free_buffers(queue)) < 0)
                goto done;
        /* Bail out if no buffers should be allocated. */
@@ -152,28 +185,6 @@ done:
 }
 /*
- * Free the video buffers.
- *
- * This function must be called with the queue lock held.
- */
-int uvc_free_buffers(struct uvc_video_queue *queue)
-{
-        unsigned int i;
-        for (i = 0; i < queue->count; ++i) {
-                if (queue->buffer[i].vma_use_count != 0)
-                        return -EBUSY;
-        }
-        if (queue->count) {
-                vfree(queue->mem);
-                queue->count = 0;
-        }
-        return 0;
-}
-/*
 * Check if buffers have been allocated.
 */
 int uvc_queue_allocated(struct uvc_video_queue *queue)
@@ -369,6 +380,82 @@ done:
 }
 /*
+ * VMA operations.
+ */
+static void uvc_vm_open(struct vm_area_struct *vma)
+{
+        struct uvc_buffer *buffer = vma->vm_private_data;
+        buffer->vma_use_count++;
+}
+static void uvc_vm_close(struct vm_area_struct *vma)
+{
+        struct uvc_buffer *buffer = vma->vm_private_data;
+        buffer->vma_use_count--;
+}
+static const struct vm_operations_struct uvc_vm_ops = {
+        .open           = uvc_vm_open,
+        .close          = uvc_vm_close,
+};
+/*
+ * Memory-map a video buffer.
+ *
+ * This function implements video buffers memory mapping and is intended to be
+ * used by the device mmap handler.
+ */
+int uvc_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)
+{
+        struct uvc_buffer *uninitialized_var(buffer);
+        struct page *page;
+        unsigned long addr, start, size;
+        unsigned int i;
+        int ret = 0;
+        start = vma->vm_start;
+        size = vma->vm_end - vma->vm_start;
+        mutex_lock(&queue->mutex);
+        for (i = 0; i < queue->count; ++i) {
+                buffer = &queue->buffer[i];
+                if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff)
+                        break;
+        }
+        if (i == queue->count || size != queue->buf_size) {
+                ret = -EINVAL;
+                goto done;
+        }
+        /*
+         * VM_IO marks the area as being an mmaped region for I/O to a
+         * device. It also prevents the region from being core dumped.
+         */
+        vma->vm_flags |= VM_IO;
+        addr = (unsigned long)queue->mem + buffer->buf.m.offset;
+        while (size > 0) {
+                page = vmalloc_to_page((void *)addr);
+                if ((ret = vm_insert_page(vma, start, page)) < 0)
+                        goto done;
+                start += PAGE_SIZE;
+                addr += PAGE_SIZE;
+                size -= PAGE_SIZE;
+        }
+        vma->vm_ops = &uvc_vm_ops;
+        vma->vm_private_data = buffer;
+        uvc_vm_open(vma);
+done:
+        mutex_unlock(&queue->mutex);
+        return ret;
+}
+/*
 * Poll the video queue.
 *
 * This function implements video queue polling and is intended to be used by
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c
index 6d15de9b5204..8cf61e8a634f 100644
--- a/drivers/media/video/uvc/uvc_v4l2.c
+++ b/drivers/media/video/uvc/uvc_v4l2.c
@@ -101,40 +101,6 @@ done:
 */
 /*
- * Mapping V4L2 controls to UVC controls can be straighforward if done well.
- * Most of the UVC controls exist in V4L2, and can be mapped directly. Some
- * must be grouped (for instance the Red Balance, Blue Balance and Do White
- * Balance V4L2 controls use the White Balance Component UVC control) or
- * otherwise translated. The approach we take here is to use a translation
- * table for the controls that can be mapped directly, and handle the others
- * manually.
- */
-static int uvc_v4l2_query_menu(struct uvc_video_chain *chain,
-        struct v4l2_querymenu *query_menu)
-{
-        struct uvc_menu_info *menu_info;
-        struct uvc_control_mapping *mapping;
-        struct uvc_control *ctrl;
-        u32 index = query_menu->index;
-        u32 id = query_menu->id;
-        ctrl = uvc_find_control(chain, query_menu->id, &mapping);
-        if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU)
-                return -EINVAL;
-        if (query_menu->index >= mapping->menu_count)
-                return -EINVAL;
-        memset(query_menu, 0, sizeof(*query_menu));
-        query_menu->id = id;
-        query_menu->index = index;
-        menu_info = &mapping->menu_info[query_menu->index];
-        strlcpy(query_menu->name, menu_info->name, sizeof query_menu->name);
-        return 0;
-}
-/*
 * Find the frame interval closest to the requested frame interval for the
 * given frame format and size. This should be done by the device as part of
 * the Video Probe and Commit negotiation, but some hardware don't implement
@@ -260,12 +226,14 @@ static int uvc_v4l2_try_format(struct uvc_streaming *stream,
         * developers test their webcams with the Linux driver as well as with
         * the Windows driver).
         */
+        mutex_lock(&stream->mutex);
        if (stream->dev->quirks & UVC_QUIRK_PROBE_EXTRAFIELDS)
                probe->dwMaxVideoFrameSize =
                        stream->ctrl.dwMaxVideoFrameSize;
        /* Probe the device. */
        ret = uvc_probe_video(stream, probe);
+        mutex_unlock(&stream->mutex);
        if (ret < 0)
                goto done;
@@ -289,14 +257,21 @@ done:
 static int uvc_v4l2_get_format(struct uvc_streaming *stream,
        struct v4l2_format *fmt)
 {
-        struct uvc_format *format = stream->cur_format;
+        struct uvc_format *format;
-        struct uvc_frame *frame = stream->cur_frame;
+        struct uvc_frame *frame;
+        int ret = 0;
        if (fmt->type != stream->type)
                return -EINVAL;
-        if (format == NULL || frame == NULL)
+        mutex_lock(&stream->mutex);
-                return -EINVAL;
+        format = stream->cur_format;
+        frame = stream->cur_frame;
+        if (format == NULL || frame == NULL) {
+                ret = -EINVAL;
+                goto done;
+        }
        fmt->fmt.pix.pixelformat = format->fcc;
        fmt->fmt.pix.width = frame->wWidth;
@@ -307,7 +282,9 @@ static int uvc_v4l2_get_format(struct uvc_streaming *stream,
        fmt->fmt.pix.colorspace = format->colorspace;
        fmt->fmt.pix.priv = 0;
-        return 0;
+done:
+        mutex_unlock(&stream->mutex);
+        return ret;
 }
 static int uvc_v4l2_set_format(struct uvc_streaming *stream,
@@ -321,18 +298,24 @@ static int uvc_v4l2_set_format(struct uvc_streaming *stream,
        if (fmt->type != stream->type)
                return -EINVAL;
-        if (uvc_queue_allocated(&stream->queue))
-                return -EBUSY;
        ret = uvc_v4l2_try_format(stream, fmt, &probe, &format, &frame);
        if (ret < 0)
                return ret;
+        mutex_lock(&stream->mutex);
+        if (uvc_queue_allocated(&stream->queue)) {
+                ret = -EBUSY;
+                goto done;
+        }
        memcpy(&stream->ctrl, &probe, sizeof probe);
        stream->cur_format = format;
        stream->cur_frame = frame;
-        return 0;
+done:
+        mutex_unlock(&stream->mutex);
+        return ret;
 }
 static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream,
@@ -343,7 +326,10 @@ static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream,
        if (parm->type != stream->type)
                return -EINVAL;
+        mutex_lock(&stream->mutex);
        numerator = stream->ctrl.dwFrameInterval;
+        mutex_unlock(&stream->mutex);
        denominator = 10000000;
        uvc_simplify_fraction(&numerator, &denominator, 8, 333);
@@ -370,7 +356,6 @@ static int uvc_v4l2_get_streamparm(struct uvc_streaming *stream,
 static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream,
                struct v4l2_streamparm *parm)
 {
-        struct uvc_frame *frame = stream->cur_frame;
        struct uvc_streaming_control probe;
        struct v4l2_fract timeperframe;
        uint32_t interval;
@@ -379,28 +364,36 @@ static int uvc_v4l2_set_streamparm(struct uvc_streaming *stream,
        if (parm->type != stream->type)
                return -EINVAL;
-        if (uvc_queue_streaming(&stream->queue))
-                return -EBUSY;
        if (parm->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
                timeperframe = parm->parm.capture.timeperframe;
        else
                timeperframe = parm->parm.output.timeperframe;
-        memcpy(&probe, &stream->ctrl, sizeof probe);
        interval = uvc_fraction_to_interval(timeperframe.numerator,
                timeperframe.denominator);
        uvc_trace(UVC_TRACE_FORMAT, "Setting frame interval to %u/%u (%u).\n",
                timeperframe.numerator, timeperframe.denominator, interval);
-        probe.dwFrameInterval = uvc_try_frame_interval(frame, interval);
+        mutex_lock(&stream->mutex);
+        if (uvc_queue_streaming(&stream->queue)) {
+                mutex_unlock(&stream->mutex);
+                return -EBUSY;
+        }
+        memcpy(&probe, &stream->ctrl, sizeof probe);
+        probe.dwFrameInterval =
+                uvc_try_frame_interval(stream->cur_frame, interval);
        /* Probe the device with the new settings. */
        ret = uvc_probe_video(stream, &probe);
-        if (ret < 0)
+        if (ret < 0) {
+                mutex_unlock(&stream->mutex);
                return ret;
+        }
        memcpy(&stream->ctrl, &probe, sizeof probe);
+        mutex_unlock(&stream->mutex);
        /* Return the actual frame period. */
        timeperframe.numerator = probe.dwFrameInterval;
@@ -528,11 +521,9 @@ static int uvc_v4l2_release(struct file *file)
        if (uvc_has_privileges(handle)) {
                uvc_video_enable(stream, 0);
-                mutex_lock(&stream->queue.mutex);
                if (uvc_free_buffers(&stream->queue) < 0)
                        uvc_printk(KERN_ERR, "uvc_v4l2_release: Unable to "
                                        "free buffers.\n");
-                mutex_unlock(&stream->queue.mutex);
        }
        /* Release the file handle. */
@@ -624,7 +615,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
        }
        case VIDIOC_QUERYMENU:
-                return uvc_v4l2_query_menu(chain, arg);
+                return uvc_query_v4l2_menu(chain, arg);
        case VIDIOC_G_EXT_CTRLS:
        {
@@ -905,15 +896,17 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
        case VIDIOC_CROPCAP:
        {
                struct v4l2_cropcap *ccap = arg;
-                struct uvc_frame *frame = stream->cur_frame;
                if (ccap->type != stream->type)
                        return -EINVAL;
                ccap->bounds.left = 0;
                ccap->bounds.top = 0;
-                ccap->bounds.width = frame->wWidth;
-                ccap->bounds.height = frame->wHeight;
+                mutex_lock(&stream->mutex);
+                ccap->bounds.width = stream->cur_frame->wWidth;
+                ccap->bounds.height = stream->cur_frame->wHeight;
+                mutex_unlock(&stream->mutex);
                ccap->defrect = ccap->bounds;
@@ -930,8 +923,6 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
        case VIDIOC_REQBUFS:
        {
                struct v4l2_requestbuffers *rb = arg;
-                unsigned int bufsize =
-                        stream->ctrl.dwMaxVideoFrameSize;
                if (rb->type != stream->type ||
                    rb->memory != V4L2_MEMORY_MMAP)
@@ -940,7 +931,10 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
                if ((ret = uvc_acquire_privileges(handle)) < 0)
                        return ret;
-                ret = uvc_alloc_buffers(&stream->queue, rb->count, bufsize);
+                mutex_lock(&stream->mutex);
+                ret = uvc_alloc_buffers(&stream->queue, rb->count,
+                                        stream->ctrl.dwMaxVideoFrameSize);
+                mutex_unlock(&stream->mutex);
                if (ret < 0)
                        return ret;
@@ -988,7 +982,9 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
                if (!uvc_has_privileges(handle))
                        return -EBUSY;
+                mutex_lock(&stream->mutex);
                ret = uvc_video_enable(stream, 1);
+                mutex_unlock(&stream->mutex);
                if (ret < 0)
                        return ret;
                break;
@@ -1068,79 +1064,14 @@ static ssize_t uvc_v4l2_read(struct file *file, char __user *data,
        return -EINVAL;
 }
-/*
- * VMA operations.
- */
-static void uvc_vm_open(struct vm_area_struct *vma)
-{
-        struct uvc_buffer *buffer = vma->vm_private_data;
-        buffer->vma_use_count++;
-}
-static void uvc_vm_close(struct vm_area_struct *vma)
-{
-        struct uvc_buffer *buffer = vma->vm_private_data;
-        buffer->vma_use_count--;
-}
-static const struct vm_operations_struct uvc_vm_ops = {
-        .open           = uvc_vm_open,
-        .close          = uvc_vm_close,
-};
 static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 {
        struct uvc_fh *handle = file->private_data;
        struct uvc_streaming *stream = handle->stream;
-        struct uvc_video_queue *queue = &stream->queue;
-        struct uvc_buffer *uninitialized_var(buffer);
-        struct page *page;
-        unsigned long addr, start, size;
-        unsigned int i;
-        int ret = 0;
        uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_mmap\n");
-        start = vma->vm_start;
+        return uvc_queue_mmap(&stream->queue, vma);
-        size = vma->vm_end - vma->vm_start;
-        mutex_lock(&queue->mutex);
-        for (i = 0; i < queue->count; ++i) {
-                buffer = &queue->buffer[i];
-                if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff)
-                        break;
-        }
-        if (i == queue->count || size != queue->buf_size) {
-                ret = -EINVAL;
-                goto done;
-        }
-        /*
-         * VM_IO marks the area as being an mmaped region for I/O to a
-         * device. It also prevents the region from being core dumped.
-         */
-        vma->vm_flags |= VM_IO;
-        addr = (unsigned long)queue->mem + buffer->buf.m.offset;
-        while (size > 0) {
-                page = vmalloc_to_page((void *)addr);
-                if ((ret = vm_insert_page(vma, start, page)) < 0)
-                        goto done;
-                start += PAGE_SIZE;
-                addr += PAGE_SIZE;
-                size -= PAGE_SIZE;
-        }
-        vma->vm_ops = &uvc_vm_ops;
-        vma->vm_private_data = buffer;
-        uvc_vm_open(vma);
-done:
-        mutex_unlock(&queue->mutex);
-        return ret;
 }
 static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait)
@@ -1157,7 +1088,7 @@ const struct v4l2_file_operations uvc_fops = {
        .owner          = THIS_MODULE,
        .open           = uvc_v4l2_open,
        .release        = uvc_v4l2_release,
-        .ioctl          = uvc_v4l2_ioctl,
+        .unlocked_ioctl = uvc_v4l2_ioctl,
        .read           = uvc_v4l2_read,
        .mmap           = uvc_v4l2_mmap,
        .poll           = uvc_v4l2_poll,
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index 5555f0102838..5673d673504b 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -293,8 +293,6 @@ int uvc_probe_video(struct uvc_streaming *stream,
        unsigned int i;
        int ret;
-        mutex_lock(&stream->mutex);
        /* Perform probing. The device should adjust the requested values
         * according to its capabilities. However, some devices, namely the
         * first generation UVC Logitech webcams, don't implement the Video
@@ -346,7 +344,6 @@ int uvc_probe_video(struct uvc_streaming *stream,
        }
 done:
-        mutex_unlock(&stream->mutex);
        return ret;
 }
diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h
index d97cf6d6a4f9..45f01e7e13d2 100644
--- a/drivers/media/video/uvc/uvcvideo.h
+++ b/drivers/media/video/uvc/uvcvideo.h
@@ -436,7 +436,9 @@ struct uvc_streaming {
        struct uvc_streaming_control ctrl;
        struct uvc_format *cur_format;
        struct uvc_frame *cur_frame;
+        /* Protect access to ctrl, cur_format, cur_frame and hardware video
+         * probe control.
+         */
        struct mutex mutex;
        unsigned int frozen : 1;
@@ -574,6 +576,8 @@ extern int uvc_queue_enable(struct uvc_video_queue *queue, int enable);
 extern void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect);
 extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
                struct uvc_buffer *buf);
+extern int uvc_queue_mmap(struct uvc_video_queue *queue,
+                struct vm_area_struct *vma);
 extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue,
                struct file *file, poll_table *wait);
 extern int uvc_queue_allocated(struct uvc_video_queue *queue);
@@ -606,10 +610,10 @@ extern int uvc_status_suspend(struct uvc_device *dev);
 extern int uvc_status_resume(struct uvc_device *dev);
 /* Controls */
-extern struct uvc_control *uvc_find_control(struct uvc_video_chain *chain,
-                __u32 v4l2_id, struct uvc_control_mapping **mapping);
 extern int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
                struct v4l2_queryctrl *v4l2_ctrl);
+extern int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
+                struct v4l2_querymenu *query_menu);
 extern int uvc_ctrl_add_mapping(struct uvc_video_chain *chain,
                const struct uvc_control_mapping *mapping);
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 9294282b5add..b5eb1f3950b1 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -368,18 +368,15 @@ EXPORT_SYMBOL_GPL(v4l2_i2c_subdev_init);
 /* Load an i2c sub-device. */
 struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
-                struct i2c_adapter *adapter, const char *module_name,
+                struct i2c_adapter *adapter, struct i2c_board_info *info,
-                struct i2c_board_info *info, const unsigned short *probe_addrs)
+                const unsigned short *probe_addrs)
 {
        struct v4l2_subdev *sd = NULL;
        struct i2c_client *client;
        BUG_ON(!v4l2_dev);
-        if (module_name)
+        request_module(I2C_MODULE_PREFIX "%s", info->type);
-                request_module(module_name);
-        else
-                request_module(I2C_MODULE_PREFIX "%s", info->type);
        /* Create the i2c client */
        if (info->addr == 0 && probe_addrs)
@@ -432,8 +429,7 @@ error:
 EXPORT_SYMBOL_GPL(v4l2_i2c_new_subdev_board);
 struct v4l2_subdev *v4l2_i2c_new_subdev_cfg(struct v4l2_device *v4l2_dev,
-                struct i2c_adapter *adapter,
+                struct i2c_adapter *adapter, const char *client_type,
-                const char *module_name, const char *client_type,
                int irq, void *platform_data,
                u8 addr, const unsigned short *probe_addrs)
 {
@@ -447,8 +443,7 @@ struct v4l2_subdev *v4l2_i2c_new_subdev_cfg(struct v4l2_device *v4l2_dev,
        info.irq = irq;
        info.platform_data = platform_data;
-        return v4l2_i2c_new_subdev_board(v4l2_dev, adapter, module_name,
+        return v4l2_i2c_new_subdev_board(v4l2_dev, adapter, &info, probe_addrs);
-                        &info, probe_addrs);
 }
 EXPORT_SYMBOL_GPL(v4l2_i2c_new_subdev_cfg);
diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
index 86294ed35c9b..e30e8dfb6205 100644
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -18,7 +18,6 @@
 #include <linux/videodev.h>
 #include <linux/videodev2.h>
 #include <linux/module.h>
-#include <linux/smp_lock.h>
 #include <media/v4l2-ioctl.h>
 #ifdef CONFIG_COMPAT
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 0ca7978654b5..359e23290a7e 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -25,7 +25,6 @@
 #include <linux/init.h>
 #include <linux/kmod.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -187,12 +186,12 @@ static ssize_t v4l2_read(struct file *filp, char __user *buf,
                size_t sz, loff_t *off)
 {
        struct video_device *vdev = video_devdata(filp);
-        int ret = -EIO;
+        int ret = -ENODEV;
        if (!vdev->fops->read)
                return -EINVAL;
-        if (vdev->lock)
+        if (vdev->lock && mutex_lock_interruptible(vdev->lock))
-                mutex_lock(vdev->lock);
+                return -ERESTARTSYS;
        if (video_is_registered(vdev))
                ret = vdev->fops->read(filp, buf, sz, off);
        if (vdev->lock)
@@ -204,12 +203,12 @@ static ssize_t v4l2_write(struct file *filp, const char __user *buf,
                size_t sz, loff_t *off)
 {
        struct video_device *vdev = video_devdata(filp);
-        int ret = -EIO;
+        int ret = -ENODEV;
        if (!vdev->fops->write)
                return -EINVAL;
-        if (vdev->lock)
+        if (vdev->lock && mutex_lock_interruptible(vdev->lock))
-                mutex_lock(vdev->lock);
+                return -ERESTARTSYS;
        if (video_is_registered(vdev))
                ret = vdev->fops->write(filp, buf, sz, off);
        if (vdev->lock)
@@ -220,10 +219,10 @@ static ssize_t v4l2_write(struct file *filp, const char __user *buf,
 static unsigned int v4l2_poll(struct file *filp, struct poll_table_struct *poll)
 {
        struct video_device *vdev = video_devdata(filp);
-        int ret = DEFAULT_POLLMASK;
+        int ret = POLLERR | POLLHUP;
        if (!vdev->fops->poll)
-                return ret;
+                return DEFAULT_POLLMASK;
        if (vdev->lock)
                mutex_lock(vdev->lock);
        if (video_is_registered(vdev))
@@ -239,18 +238,45 @@ static long v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
        int ret = -ENODEV;
        if (vdev->fops->unlocked_ioctl) {
-                if (vdev->lock)
+                if (vdev->lock && mutex_lock_interruptible(vdev->lock))
-                        mutex_lock(vdev->lock);
+                        return -ERESTARTSYS;
                if (video_is_registered(vdev))
                        ret = vdev->fops->unlocked_ioctl(filp, cmd, arg);
                if (vdev->lock)
                        mutex_unlock(vdev->lock);
        } else if (vdev->fops->ioctl) {
-                /* TODO: convert all drivers to unlocked_ioctl */
+                /* This code path is a replacement for the BKL. It is a major
-                lock_kernel();
+                 * hack but it will have to do for those drivers that are not
+                 * yet converted to use unlocked_ioctl.
+                 *
+                 * There are two options: if the driver implements struct
+                 * v4l2_device, then the lock defined there is used to
+                 * serialize the ioctls. Otherwise the v4l2 core lock defined
+                 * below is used. This lock is really bad since it serializes
+                 * completely independent devices.
+                 *
+                 * Both variants suffer from the same problem: if the driver
+                 * sleeps, then it blocks all ioctls since the lock is still
+                 * held. This is very common for VIDIOC_DQBUF since that
+                 * normally waits for a frame to arrive. As a result any other
+                 * ioctl calls will proceed very, very slowly since each call
+                 * will have to wait for the VIDIOC_QBUF to finish. Things that
+                 * should take 0.01s may now take 10-20 seconds.
+                 *
+                 * The workaround is to *not* take the lock for VIDIOC_DQBUF.
+                 * This actually works OK for videobuf-based drivers, since
+                 * videobuf will take its own internal lock.
+                 */
+                static DEFINE_MUTEX(v4l2_ioctl_mutex);
+                struct mutex *m = vdev->v4l2_dev ?
+                        &vdev->v4l2_dev->ioctl_lock : &v4l2_ioctl_mutex;
+                if (cmd != VIDIOC_DQBUF && mutex_lock_interruptible(m))
+                        return -ERESTARTSYS;
                if (video_is_registered(vdev))
                        ret = vdev->fops->ioctl(filp, cmd, arg);
-                unlock_kernel();
+                if (cmd != VIDIOC_DQBUF)
+                        mutex_unlock(m);
        } else
                ret = -ENOTTY;
@@ -264,8 +290,8 @@ static int v4l2_mmap(struct file *filp, struct vm_area_struct *vm)
        if (!vdev->fops->mmap)
                return ret;
-        if (vdev->lock)
+        if (vdev->lock && mutex_lock_interruptible(vdev->lock))
-                mutex_lock(vdev->lock);
+                return -ERESTARTSYS;
        if (video_is_registered(vdev))
                ret = vdev->fops->mmap(filp, vm);
        if (vdev->lock)
@@ -283,7 +309,7 @@ static int v4l2_open(struct inode *inode, struct file *filp)
        mutex_lock(&videodev_lock);
        vdev = video_devdata(filp);
        /* return ENODEV if the video device has already been removed. */
-        if (vdev == NULL) {
+        if (vdev == NULL || !video_is_registered(vdev)) {
                mutex_unlock(&videodev_lock);
                return -ENODEV;
        }
@@ -291,8 +317,10 @@ static int v4l2_open(struct inode *inode, struct file *filp)
        video_get(vdev);
        mutex_unlock(&videodev_lock);
        if (vdev->fops->open) {
-                if (vdev->lock)
+                if (vdev->lock && mutex_lock_interruptible(vdev->lock)) {
-                        mutex_lock(vdev->lock);
+                        ret = -ERESTARTSYS;
+                        goto err;
+                }
                if (video_is_registered(vdev))
                        ret = vdev->fops->open(filp);
                else
@@ -301,6 +329,7 @@ static int v4l2_open(struct inode *inode, struct file *filp)
                        mutex_unlock(vdev->lock);
        }
+err:
        /* decrease the refcount in case of an error */
        if (ret)
                video_put(vdev);
@@ -595,7 +624,12 @@ void video_unregister_device(struct video_device *vdev)
        if (!vdev || !video_is_registered(vdev))
                return;
+        mutex_lock(&videodev_lock);
+        /* This must be in a critical section to prevent a race with v4l2_open.
+         * Once this bit has been cleared video_get may never be called again.
+         */
        clear_bit(V4L2_FL_REGISTERED, &vdev->flags);
+        mutex_unlock(&videodev_lock);
        device_unregister(&vdev->dev);
 }
 EXPORT_SYMBOL(video_unregister_device);
diff --git a/drivers/media/video/v4l2-device.c b/drivers/media/video/v4l2-device.c
index 0b08f96b74a5..7fe6f92af480 100644
--- a/drivers/media/video/v4l2-device.c
+++ b/drivers/media/video/v4l2-device.c
@@ -35,6 +35,7 @@ int v4l2_device_register(struct device *dev, struct v4l2_device *v4l2_dev)
        INIT_LIST_HEAD(&v4l2_dev->subdevs);
        spin_lock_init(&v4l2_dev->lock);
+        mutex_init(&v4l2_dev->ioctl_lock);
        v4l2_dev->dev = dev;
        if (dev == NULL) {
                /* If dev == NULL, then name must be filled in by the caller */
diff --git a/drivers/media/video/via-camera.c b/drivers/media/video/via-camera.c
index 6f52818d5917..222e72db0445 100644
--- a/drivers/media/video/via-camera.c
+++ b/drivers/media/video/via-camera.c
@@ -1358,7 +1358,7 @@ static __devinit int viacam_probe(struct platform_device *pdev)
         */
        sensor_adapter = viafb_find_i2c_adapter(VIA_PORT_31);
        cam->sensor = v4l2_i2c_new_subdev(&cam->v4l2_dev, sensor_adapter,
-                        "ov7670", "ov7670", 0x42 >> 1, NULL);
+                        "ov7670", 0x42 >> 1, NULL);
        if (cam->sensor == NULL) {
                dev_err(&pdev->dev, "Unable to find the sensor!\n");
                ret = -ENODEV;
diff --git a/drivers/media/video/vino.c b/drivers/media/video/vino.c
index e5e005dc1554..7e7eec48f8b1 100644
--- a/drivers/media/video/vino.c
+++ b/drivers/media/video/vino.c
@@ -4334,10 +4334,10 @@ static int __init vino_module_init(void)
        vino_drvdata->decoder =
                v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter,
-                               NULL, "saa7191", 0, I2C_ADDRS(0x45));
+                               "saa7191", 0, I2C_ADDRS(0x45));
        vino_drvdata->camera =
                v4l2_i2c_new_subdev(&vino_drvdata->v4l2_dev, &vino_i2c_adapter,
-                               NULL, "indycam", 0, I2C_ADDRS(0x2b));
+                               "indycam", 0, I2C_ADDRS(0x2b));
        dprintk("init complete!\n");
diff --git a/drivers/media/video/w9966.c b/drivers/media/video/w9966.c
index 635420d8d84a..019ee206cbee 100644
--- a/drivers/media/video/w9966.c
+++ b/drivers/media/video/w9966.c
@@ -815,7 +815,7 @@ out:
 static const struct v4l2_file_operations w9966_fops = {
        .owner          = THIS_MODULE,
-        .ioctl          = video_ioctl2,
+        .unlocked_ioctl = video_ioctl2,
        .read           = w9966_v4l_read,
 };
diff --git a/drivers/media/video/zoran/zoran.h b/drivers/media/video/zoran/zoran.h
index 1f04438695dd..b336259ce20c 100644
--- a/drivers/media/video/zoran/zoran.h
+++ b/drivers/media/video/zoran/zoran.h
@@ -388,6 +388,7 @@ struct zoran {
        struct videocodec *vfe; /* video front end */
        struct mutex resource_lock;     /* prevent evil stuff */
+        struct mutex other_lock;        /* please merge with above */
        u8 initialized;         /* flag if zoran has been correctly initialized */
        int user;               /* number of current users */
diff --git a/drivers/media/video/zoran/zoran_card.c b/drivers/media/video/zoran/zoran_card.c
index 0aac376c3f7a..e520abf9f4c3 100644
--- a/drivers/media/video/zoran/zoran_card.c
+++ b/drivers/media/video/zoran/zoran_card.c
@@ -1227,6 +1227,7 @@ static int __devinit zoran_probe(struct pci_dev *pdev,
        snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id);
        spin_lock_init(&zr->spinlock);
        mutex_init(&zr->resource_lock);
+        mutex_init(&zr->other_lock);
        if (pci_enable_device(pdev))
                goto zr_unreg;
        pci_read_config_byte(zr->pci_dev, PCI_CLASS_REVISION, &zr->revision);
@@ -1342,13 +1343,12 @@ static int __devinit zoran_probe(struct pci_dev *pdev,
        }
        zr->decoder = v4l2_i2c_new_subdev(&zr->v4l2_dev,
-                &zr->i2c_adapter, NULL, zr->card.i2c_decoder,
+                &zr->i2c_adapter, zr->card.i2c_decoder,
                0, zr->card.addrs_decoder);
        if (zr->card.i2c_encoder)
                zr->encoder = v4l2_i2c_new_subdev(&zr->v4l2_dev,
-                        &zr->i2c_adapter,
+                        &zr->i2c_adapter, zr->card.i2c_encoder,
-                        NULL, zr->card.i2c_encoder,
                        0, zr->card.addrs_encoder);
        dprintk(2,
diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c
index 401082b853f0..67a52e844ae6 100644
--- a/drivers/media/video/zoran/zoran_driver.c
+++ b/drivers/media/video/zoran/zoran_driver.c
@@ -49,7 +49,6 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
-#include <linux/smp_lock.h>
 #include <linux/pci.h>
 #include <linux/vmalloc.h>
 #include <linux/wait.h>
@@ -913,7 +912,7 @@ static int zoran_open(struct file *file)
        dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
                ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
-        lock_kernel();
+        mutex_lock(&zr->other_lock);
        if (zr->user >= 2048) {
                dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
@@ -963,14 +962,14 @@ static int zoran_open(struct file *file)
        file->private_data = fh;
        fh->zr = zr;
        zoran_open_init_session(fh);
-        unlock_kernel();
+        mutex_unlock(&zr->other_lock);
        return 0;
 fail_fh:
        kfree(fh);
 fail_unlock:
-        unlock_kernel();
+        mutex_unlock(&zr->other_lock);
        dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
                ZR_DEVNAME(zr), res, zr->user);
@@ -989,7 +988,7 @@ zoran_close(struct file  *file)
        /* kernel locks (fs/device.c), so don't do that ourselves
         * (prevents deadlocks) */
-        /*mutex_lock(&zr->resource_lock);*/
+        mutex_lock(&zr->other_lock);
        zoran_close_end_session(fh);
@@ -1023,6 +1022,7 @@ zoran_close(struct file  *file)
                        encoder_call(zr, video, s_routing, 2, 0, 0);
                }
        }
+        mutex_unlock(&zr->other_lock);
        file->private_data = NULL;
        kfree(fh->overlay_mask);
@@ -3370,11 +3370,26 @@ static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
 #endif
 };
+/* please use zr->resource_lock consistently and kill this wrapper */
+static long zoran_ioctl(struct file *file, unsigned int cmd,
+                        unsigned long arg)
+{
+        struct zoran_fh *fh = file->private_data;
+        struct zoran *zr = fh->zr;
+        int ret;
+        mutex_lock(&zr->other_lock);
+        ret = video_ioctl2(file, cmd, arg);
+        mutex_unlock(&zr->other_lock);
+        return ret;
+}
 static const struct v4l2_file_operations zoran_fops = {
        .owner = THIS_MODULE,
        .open = zoran_open,
        .release = zoran_close,
-        .ioctl = video_ioctl2,
+        .unlocked_ioctl = zoran_ioctl,
        .read = zoran_read,
        .write = zoran_write,
        .mmap = zoran_mmap,