V4L/DVB (8757): v4l-dvb: fix a bunch of sparse warnings

Fixed a lot of sparse warnings: mostly warnings about shadowed variables
and signed/unsigned mismatches.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

23 files changed, 146 insertions, 131 deletions

diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c
index e8bc7abf2409..99be9e5c85f7 100644
--- a/drivers/media/common/saa7146_video.c
+++ b/drivers/media/common/saa7146_video.c
@@ -1068,7 +1068,7 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int
         {
                 v4l2_std_id *id = arg;
                 int found = 0;
-                int i, err;
+                int i;
 
                 DEB_EE(("VIDIOC_S_STD\n"));
 
@@ -1116,7 +1116,6 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int
         case VIDIOC_OVERLAY:
         {
                 int on = *(int *)arg;
-                int err = 0;
 
                 DEB_D(("VIDIOC_OVERLAY on:%d\n",on));
                 if (on != 0) {
@@ -1192,7 +1191,6 @@ int saa7146_video_do_ioctl(struct inode *inode, struct file *file, unsigned int
         case VIDIOCGMBUF:
         {
                 struct video_mbuf *mbuf = arg;
-                struct videobuf_queue *q;
                 int i;
 
                 /* fixme: number of capture buffers and sizes for v4l apps */
diff --git a/drivers/media/common/tuners/tuner-simple.c b/drivers/media/common/tuners/tuner-simple.c
index 597e47f5d69c..aa773a658a2a 100644
--- a/drivers/media/common/tuners/tuner-simple.c
+++ b/drivers/media/common/tuners/tuner-simple.c
@@ -253,7 +253,7 @@ static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,
 
 static int simple_config_lookup(struct dvb_frontend *fe,
                                 struct tuner_params *t_params,
-                                int *frequency, u8 *config, u8 *cb)
+                                unsigned *frequency, u8 *config, u8 *cb)
 {
         struct tuner_simple_priv *priv = fe->tuner_priv;
         int i;
@@ -587,45 +587,45 @@ static int simple_set_tv_freq(struct dvb_frontend *fe,
         priv->last_div = div;
         if (t_params->has_tda9887) {
                 struct v4l2_priv_tun_config tda9887_cfg;
-                int config = 0;
+                int tda_config = 0;
                 int is_secam_l = (params->std & (V4L2_STD_SECAM_L |
                                                  V4L2_STD_SECAM_LC)) &&
                         !(params->std & ~(V4L2_STD_SECAM_L |
                                           V4L2_STD_SECAM_LC));
 
                 tda9887_cfg.tuner = TUNER_TDA9887;
-                tda9887_cfg.priv  = &config;
+                tda9887_cfg.priv  = &tda_config;
 
                 if (params->std == V4L2_STD_SECAM_LC) {
                         if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc)
-                                config |= TDA9887_PORT1_ACTIVE;
+                                tda_config |= TDA9887_PORT1_ACTIVE;
                         if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc)
-                                config |= TDA9887_PORT2_ACTIVE;
+                                tda_config |= TDA9887_PORT2_ACTIVE;
                 } else {
                         if (t_params->port1_active)
-                                config |= TDA9887_PORT1_ACTIVE;
+                                tda_config |= TDA9887_PORT1_ACTIVE;
                         if (t_params->port2_active)
-                                config |= TDA9887_PORT2_ACTIVE;
+                                tda_config |= TDA9887_PORT2_ACTIVE;
                 }
                 if (t_params->intercarrier_mode)
-                        config |= TDA9887_INTERCARRIER;
+                        tda_config |= TDA9887_INTERCARRIER;
                 if (is_secam_l) {
                         if (i == 0 && t_params->default_top_secam_low)
-                                config |= TDA9887_TOP(t_params->default_top_secam_low);
+                                tda_config |= TDA9887_TOP(t_params->default_top_secam_low);
                         else if (i == 1 && t_params->default_top_secam_mid)
-                                config |= TDA9887_TOP(t_params->default_top_secam_mid);
+                                tda_config |= TDA9887_TOP(t_params->default_top_secam_mid);
                         else if (t_params->default_top_secam_high)
-                                config |= TDA9887_TOP(t_params->default_top_secam_high);
+                                tda_config |= TDA9887_TOP(t_params->default_top_secam_high);
                 } else {
                         if (i == 0 && t_params->default_top_low)
-                                config |= TDA9887_TOP(t_params->default_top_low);
+                                tda_config |= TDA9887_TOP(t_params->default_top_low);
                         else if (i == 1 && t_params->default_top_mid)
-                                config |= TDA9887_TOP(t_params->default_top_mid);
+                                tda_config |= TDA9887_TOP(t_params->default_top_mid);
                         else if (t_params->default_top_high)
-                                config |= TDA9887_TOP(t_params->default_top_high);
+                                tda_config |= TDA9887_TOP(t_params->default_top_high);
                 }
                 if (t_params->default_pll_gating_18)
-                        config |= TDA9887_GATING_18;
+                        tda_config |= TDA9887_GATING_18;
                 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,
                                     &tda9887_cfg);
         }
@@ -813,7 +813,8 @@ static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,
         static struct tuner_params *t_params;
         u8 config, cb;
         u32 div;
-        int ret, frequency = params->frequency / 62500;
+        int ret;
+        unsigned frequency = params->frequency / 62500;
 
         t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);
         ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c
index 1cf9fcb6f514..069d847ba887 100644
--- a/drivers/media/dvb/dvb-core/dmxdev.c
+++ b/drivers/media/dvb/dvb-core/dmxdev.c
@@ -641,7 +641,6 @@ static int dvb_dmxdev_filter_start(struct dmxdev_filter *filter)
                 struct timespec timeout = { 0 };
                 struct dmx_pes_filter_params *para = &filter->params.pes;
                 dmx_output_t otype;
-                int ret;
                 int ts_type;
                 enum dmx_ts_pes ts_pes;
                 struct dmx_ts_feed **tsfeed = &filter->feed.ts;
diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
index 8e5dd7b1f034..98ee16773ff2 100644
--- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
@@ -1032,7 +1032,7 @@ static int dvb_ca_en50221_thread(void *data)
                                         /* we need this extra check for annoying interfaces like the budget-av */
                                         if ((!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) &&
                                             (ca->pub->poll_slot_status)) {
-                                                int status = ca->pub->poll_slot_status(ca->pub, slot, 0);
+                                                status = ca->pub->poll_slot_status(ca->pub, slot, 0);
                                                 if (!(status & DVB_CA_EN50221_POLL_CAM_PRESENT)) {
                                                         ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_NONE;
                                                         dvb_ca_en50221_thread_update_delay(ca);
@@ -1089,7 +1089,7 @@ static int dvb_ca_en50221_thread(void *data)
                                         /* we need this extra check for annoying interfaces like the budget-av */
                                         if ((!(ca->flags & DVB_CA_EN50221_FLAG_IRQ_CAMCHANGE)) &&
                                             (ca->pub->poll_slot_status)) {
-                                                int status = ca->pub->poll_slot_status(ca->pub, slot, 0);
+                                                status = ca->pub->poll_slot_status(ca->pub, slot, 0);
                                                 if (!(status & DVB_CA_EN50221_POLL_CAM_PRESENT)) {
                                                         ca->slot_info[slot].slot_state = DVB_CA_SLOTSTATE_NONE;
                                                         dvb_ca_en50221_thread_update_delay(ca);
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 8cbdb218952f..3526e3ee9487 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -889,13 +889,13 @@ static int dvb_frontend_ioctl(struct inode *inode, struct file *file,
                          * initialization, so parg is 8 bits and does not
                          * include the initialization or start bit
                          */
-                        unsigned long cmd = ((unsigned long) parg) << 1;
+                        unsigned long swcmd = ((unsigned long) parg) << 1;
                         struct timeval nexttime;
                         struct timeval tv[10];
                         int i;
                         u8 last = 1;
                         if (dvb_frontend_debug)
-                                printk("%s switch command: 0x%04lx\n", __func__, cmd);
+                                printk("%s switch command: 0x%04lx\n", __func__, swcmd);
                         do_gettimeofday(&nexttime);
                         if (dvb_frontend_debug)
                                 memcpy(&tv[0], &nexttime, sizeof(struct timeval));
@@ -908,12 +908,12 @@ static int dvb_frontend_ioctl(struct inode *inode, struct file *file,
                         for (i = 0; i < 9; i++) {
                                 if (dvb_frontend_debug)
                                         do_gettimeofday(&tv[i + 1]);
-                                if ((cmd & 0x01) != last) {
+                                if ((swcmd & 0x01) != last) {
                                         /* set voltage to (last ? 13V : 18V) */
                                         fe->ops.set_voltage(fe, (last) ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18);
                                         last = (last) ? 0 : 1;
                                 }
-                                cmd = cmd >> 1;
+                                swcmd = swcmd >> 1;
                                 if (i != 8)
                                         dvb_frontend_sleep_until(&nexttime, 8000);
                         }
diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c
index aaa0b6f0b521..563400277a42 100644
--- a/drivers/media/dvb/dvb-usb/cxusb.c
+++ b/drivers/media/dvb/dvb-usb/cxusb.c
@@ -210,7 +210,7 @@ static int cxusb_aver_power_ctrl(struct dvb_usb_device *d, int onoff)
         if (d->state == DVB_USB_STATE_INIT &&
             usb_set_interface(d->udev, 0, 0) < 0)
                 err("set interface failed");
-        do; while (!(ret = cxusb_ctrl_msg(d, CMD_POWER_ON, NULL, 0, NULL, 0)) &&
+        do {} while (!(ret = cxusb_ctrl_msg(d, CMD_POWER_ON, NULL, 0, NULL, 0)) &&
                    !(ret = cxusb_ctrl_msg(d, 0x15, NULL, 0, NULL, 0)) &&
                    !(ret = cxusb_ctrl_msg(d, 0x17, NULL, 0, NULL, 0)) && 0);
         if (!ret) {
diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c
index 43c75497dc49..e210da161566 100644
--- a/drivers/media/radio/radio-maxiradio.c
+++ b/drivers/media/radio/radio-maxiradio.c
@@ -156,28 +156,28 @@ static void set_freq(__u16 io, __u32 freq)
 {
         unsigned long int si;
         int bl;
-        int data = FREQ2BITS(freq);
+        int val = FREQ2BITS(freq);
 
         /* TEA5757 shift register bits (see pdf) */
 
-        outbit(0,io); // 24  search
-        outbit(1,io); // 23  search up/down
+        outbit(0, io); /* 24  search */
+        outbit(1, io); /* 23  search up/down */
 
-        outbit(0,io); // 22  stereo/mono
+        outbit(0, io); /* 22  stereo/mono */
 
-        outbit(0,io); // 21  band
-        outbit(0,io); // 20  band (only 00=FM works I think)
+        outbit(0, io); /* 21  band */
+        outbit(0, io); /* 20  band (only 00=FM works I think) */
 
-        outbit(0,io); // 19  port ?
-        outbit(0,io); // 18  port ?
+        outbit(0, io); /* 19  port ? */
+        outbit(0, io); /* 18  port ? */
 
-        outbit(0,io); // 17  search level
-        outbit(0,io); // 16  search level
+        outbit(0, io); /* 17  search level */
+        outbit(0, io); /* 16  search level */
 
         si = 0x8000;
-        for (bl = 1; bl <= 16 ; bl++) {
-                outbit(data & si,io);
-                si >>=1;
+        for (bl = 1; bl <= 16; bl++) {
+                outbit(val & si, io);
+                si >>= 1;
         }
 
         dprintk(1, "Radio freq set to %d.%02d MHz\n",
diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c
index 1c56ae92ce74..9001de233323 100644
--- a/drivers/media/video/bt8xx/bttv-cards.c
+++ b/drivers/media/video/bt8xx/bttv-cards.c
@@ -3144,8 +3144,9 @@ static void identify_by_eeprom(struct bttv *btv, unsigned char eeprom_data[256])
 
 static void flyvideo_gpio(struct bttv *btv)
 {
-        int gpio,has_remote,has_radio,is_capture_only,is_lr90,has_tda9820_tda9821;
-        int tuner=UNSET,ttype;
+        int gpio, has_remote, has_radio, is_capture_only;
+        int is_lr90, has_tda9820_tda9821;
+        int tuner_type = UNSET, ttype;
 
         gpio_inout(0xffffff, 0);
         udelay(8);  /* without this we would see the 0x1800 mask */
@@ -3163,20 +3164,26 @@ static void flyvideo_gpio(struct bttv *btv)
          * xxxF00(LR26/LR50), xxxFE0(LR90): Remote control chip (LVA001 or CF45) soldered
          * Note: Some bits are Audio_Mask !
          */
-        ttype=(gpio&0x0f0000)>>16;
-        switch(ttype) {
-        case 0x0: tuner=2; /* NTSC, e.g. TPI8NSR11P */
+        ttype = (gpio & 0x0f0000) >> 16;
+        switch (ttype) {
+        case 0x0:
+                tuner_type = 2;  /* NTSC, e.g. TPI8NSR11P */
                 break;
-        case 0x2: tuner=39;/* LG NTSC (newer TAPC series) TAPC-H701P */
+        case 0x2:
+                tuner_type = 39; /* LG NTSC (newer TAPC series) TAPC-H701P */
                 break;
-        case 0x4: tuner=5; /* Philips PAL TPI8PSB02P, TPI8PSB12P, TPI8PSB12D or FI1216, FM1216 */
+        case 0x4:
+                tuner_type = 5;  /* Philips PAL TPI8PSB02P, TPI8PSB12P, TPI8PSB12D or FI1216, FM1216 */
                 break;
-        case 0x6: tuner=37;/* LG PAL (newer TAPC series) TAPC-G702P */
+        case 0x6:
+                tuner_type = 37; /* LG PAL (newer TAPC series) TAPC-G702P */
                 break;
-                case 0xC: tuner=3; /* Philips SECAM(+PAL) FQ1216ME or FI1216MF */
+        case 0xC:
+                tuner_type = 3;  /* Philips SECAM(+PAL) FQ1216ME or FI1216MF */
                 break;
         default:
                 printk(KERN_INFO "bttv%d: FlyVideo_gpio: unknown tuner type.\n", btv->c.nr);
+                break;
         }
 
         has_remote          =   gpio & 0x800000;
@@ -3189,23 +3196,26 @@ static void flyvideo_gpio(struct bttv *btv)
         /*
          * gpio & 0x001000    output bit for audio routing */
 
-        if(is_capture_only)
-                tuner = TUNER_ABSENT; /* No tuner present */
+        if (is_capture_only)
+                tuner_type = TUNER_ABSENT; /* No tuner present */
 
         printk(KERN_INFO "bttv%d: FlyVideo Radio=%s RemoteControl=%s Tuner=%d gpio=0x%06x\n",
-               btv->c.nr, has_radio? "yes":"no ", has_remote? "yes":"no ", tuner, gpio);
+                btv->c.nr, has_radio ? "yes" : "no ",
+                has_remote ? "yes" : "no ", tuner_type, gpio);
         printk(KERN_INFO "bttv%d: FlyVideo  LR90=%s tda9821/tda9820=%s capture_only=%s\n",
-                btv->c.nr, is_lr90?"yes":"no ", has_tda9820_tda9821?"yes":"no ",
-                is_capture_only?"yes":"no ");
+                btv->c.nr, is_lr90 ? "yes" : "no ",
+                has_tda9820_tda9821 ? "yes" : "no ",
+                is_capture_only ? "yes" : "no ");
 
-        if (tuner != UNSET) /* only set if known tuner autodetected, else let insmod option through */
-                btv->tuner_type = tuner;
+        if (tuner_type != UNSET) /* only set if known tuner autodetected, else let insmod option through */
+                btv->tuner_type = tuner_type;
         btv->has_radio = has_radio;
 
         /* LR90 Audio Routing is done by 2 hef4052, so Audio_Mask has 4 bits: 0x001c80
          * LR26/LR50 only has 1 hef4052, Audio_Mask 0x000c00
          * Audio options: from tuner, from tda9821/tda9821(mono,stereo,sap), from tda9874, ext., mute */
-        if(has_tda9820_tda9821) btv->audio_mode_gpio = lt9415_audio;
+        if (has_tda9820_tda9821)
+                btv->audio_mode_gpio = lt9415_audio;
         /* todo: if(has_tda9874) btv->audio_mode_gpio = fv2000s_audio; */
 }
 
@@ -3962,7 +3972,7 @@ static int tuner_1_table[] = {
 
 static void __devinit avermedia_eeprom(struct bttv *btv)
 {
-        int tuner_make,tuner_tv_fm,tuner_format,tuner=0;
+        int tuner_make, tuner_tv_fm, tuner_format, tuner_type = 0;
 
         tuner_make      = (eeprom_data[0x41] & 0x7);
         tuner_tv_fm     = (eeprom_data[0x41] & 0x18) >> 3;
@@ -3970,24 +3980,24 @@ static void __devinit avermedia_eeprom(struct bttv *btv)
         btv->has_remote = (eeprom_data[0x42] & 0x01);
 
         if (tuner_make == 0 || tuner_make == 2)
-                if(tuner_format <=0x0a)
-                        tuner = tuner_0_table[tuner_format];
+                if (tuner_format <= 0x0a)
+                        tuner_type = tuner_0_table[tuner_format];
         if (tuner_make == 1)
-                if(tuner_format <=9)
-                        tuner = tuner_1_table[tuner_format];
+                if (tuner_format <= 9)
+                        tuner_type = tuner_1_table[tuner_format];
 
         if (tuner_make == 4)
-                if(tuner_format == 0x09)
-                        tuner = TUNER_LG_NTSC_NEW_TAPC; /* TAPC-G702P */
+                if (tuner_format == 0x09)
+                        tuner_type = TUNER_LG_NTSC_NEW_TAPC; /* TAPC-G702P */
 
         printk(KERN_INFO "bttv%d: Avermedia eeprom[0x%02x%02x]: tuner=",
-                btv->c.nr,eeprom_data[0x41],eeprom_data[0x42]);
-        if(tuner) {
-                btv->tuner_type=tuner;
-                printk("%d",tuner);
+                btv->c.nr, eeprom_data[0x41], eeprom_data[0x42]);
+        if (tuner_type) {
+                btv->tuner_type = tuner_type;
+                printk(KERN_CONT "%d", tuner_type);
         } else
-                printk("Unknown type");
-        printk(" radio:%s remote control:%s\n",
+                printk(KERN_CONT "Unknown type");
+        printk(KERN_CONT " radio:%s remote control:%s\n",
                tuner_tv_fm     ? "yes" : "no",
                btv->has_remote ? "yes" : "no");
 }
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 85bf31ab8789..6ae4cc860efe 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -96,7 +96,6 @@ static unsigned int irq_iswitch;
 static unsigned int uv_ratio    = 50;
 static unsigned int full_luma_range;
 static unsigned int coring;
-extern int no_overlay;
 
 /* API features (turn on/off stuff for testing) */
 static unsigned int v4l2        = 1;
diff --git a/drivers/media/video/bt8xx/bttv-risc.c b/drivers/media/video/bt8xx/bttv-risc.c
index 649682aac1ac..5b1b8e4c78ba 100644
--- a/drivers/media/video/bt8xx/bttv-risc.c
+++ b/drivers/media/video/bt8xx/bttv-risc.c
@@ -244,7 +244,8 @@ bttv_risc_overlay(struct bttv *btv, struct btcx_riscmem *risc,
                   const struct bttv_format *fmt, struct bttv_overlay *ov,
                   int skip_even, int skip_odd)
 {
-        int dwords,rc,line,maxy,start,end,skip,nskips;
+        int dwords, rc, line, maxy, start, end;
+        unsigned skip, nskips;
         struct btcx_skiplist *skips;
         __le32 *rp;
         u32 ri,ra;
diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h
index 08ef54a22c9e..b4d940b2e447 100644
--- a/drivers/media/video/bt8xx/bttvp.h
+++ b/drivers/media/video/bt8xx/bttvp.h
@@ -267,6 +267,11 @@ int bttv_sub_add_device(struct bttv_core *core, char *name);
 int bttv_sub_del_devices(struct bttv_core *core);
 
 /* ---------------------------------------------------------- */
+/* bttv-cards.c                                               */
+
+extern int no_overlay;
+
+/* ---------------------------------------------------------- */
 /* bttv-driver.c                                              */
 
 /* insmod options */
diff --git a/drivers/media/video/btcx-risc.c b/drivers/media/video/btcx-risc.c
index f42701f82e7f..3324ab38f58c 100644
--- a/drivers/media/video/btcx-risc.c
+++ b/drivers/media/video/btcx-risc.c
@@ -184,12 +184,12 @@ btcx_sort_clips(struct v4l2_clip *clips, unsigned int nclips)
 }
 
 void
-btcx_calc_skips(int line, int width, unsigned int *maxy,
+btcx_calc_skips(int line, int width, int *maxy,
                 struct btcx_skiplist *skips, unsigned int *nskips,
                 const struct v4l2_clip *clips, unsigned int nclips)
 {
         unsigned int clip,skip;
-        int end,maxline;
+        int end, maxline;
 
         skip=0;
         maxline = 9999;
diff --git a/drivers/media/video/btcx-risc.h b/drivers/media/video/btcx-risc.h
index 861bc8112824..f8bc6e8e7b51 100644
--- a/drivers/media/video/btcx-risc.h
+++ b/drivers/media/video/btcx-risc.h
@@ -23,7 +23,7 @@ int btcx_screen_clips(int swidth, int sheight, struct v4l2_rect *win,
 int btcx_align(struct v4l2_rect *win, struct v4l2_clip *clips,
                unsigned int n, int mask);
 void btcx_sort_clips(struct v4l2_clip *clips, unsigned int nclips);
-void btcx_calc_skips(int line, int width, unsigned int *maxy,
+void btcx_calc_skips(int line, int width, int *maxy,
                      struct btcx_skiplist *skips, unsigned int *nskips,
                      const struct v4l2_clip *clips, unsigned int nclips);
 
diff --git a/drivers/media/video/cpia2/cpia2_v4l.c b/drivers/media/video/cpia2/cpia2_v4l.c
index 515c8b57a60d..c82570606427 100644
--- a/drivers/media/video/cpia2/cpia2_v4l.c
+++ b/drivers/media/video/cpia2/cpia2_v4l.c
@@ -1024,7 +1024,6 @@ static int ioctl_queryctrl(void *arg,struct camera_data *cam)
                 if(cam->params.pnp_id.device_type == DEVICE_STV_672 &&
                    cam->params.version.sensor_flags==CPIA2_VP_SENSOR_FLAGS_500){
                         // Maximum 15fps
-                        int i;
                         for(i=0; i<c->maximum; ++i) {
                                 if(framerate_controls[i].value ==
                                    CPIA2_VP_FRAMERATE_15) {
diff --git a/drivers/media/video/cx18/cx18-av-firmware.c b/drivers/media/video/cx18/cx18-av-firmware.c
index 834b9248242e..e996a4e3123a 100644
--- a/drivers/media/video/cx18/cx18-av-firmware.c
+++ b/drivers/media/video/cx18/cx18-av-firmware.c
@@ -32,7 +32,7 @@ int cx18_av_loadfw(struct cx18 *cx)
         u32 v;
         const u8 *ptr;
         int i;
-        int retries = 0;
+        int retries1 = 0;
 
         if (request_firmware(&fw, FWFILE, &cx->dev->dev) != 0) {
                 CX18_ERR("unable to open firmware %s\n", FWFILE);
@@ -41,7 +41,7 @@ int cx18_av_loadfw(struct cx18 *cx)
 
         /* The firmware load often has byte errors, so allow for several
            retries, both at byte level and at the firmware load level. */
-        while (retries < 5) {
+        while (retries1 < 5) {
                 cx18_av_write4(cx, CXADEC_CHIP_CTRL, 0x00010000);
                 cx18_av_write(cx, CXADEC_STD_DET_CTL, 0xf6);
 
@@ -57,9 +57,9 @@ int cx18_av_loadfw(struct cx18 *cx)
                 for (i = 0; i < size; i++) {
                         u32 dl_control = 0x0F000000 | i | ((u32)ptr[i] << 16);
                         u32 value = 0;
-                        int retries;
+                        int retries2;
 
-                        for (retries = 0; retries < 5; retries++) {
+                        for (retries2 = 0; retries2 < 5; retries2++) {
                                 cx18_av_write4(cx, CXADEC_DL_CTL, dl_control);
                                 udelay(10);
                                 value = cx18_av_read4(cx, CXADEC_DL_CTL);
@@ -69,18 +69,18 @@ int cx18_av_loadfw(struct cx18 *cx)
                                    the address.  We can only write the lower
                                    address byte of the address. */
                                 if ((value & 0x3F00) != (dl_control & 0x3F00)) {
-                                        retries = 5;
+                                        retries2 = 5;
                                         break;
                                 }
                         }
-                        if (retries >= 5)
+                        if (retries2 >= 5)
                                 break;
                 }
                 if (i == size)
                         break;
-                retries++;
+                retries1++;
         }
-        if (retries >= 5) {
+        if (retries1 >= 5) {
                 CX18_ERR("unable to load firmware %s\n", FWFILE);
                 release_firmware(fw);
                 return -EIO;
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c
index 22434aadde31..bd18afebbf86 100644
--- a/drivers/media/video/cx18/cx18-driver.c
+++ b/drivers/media/video/cx18/cx18-driver.c
@@ -74,9 +74,9 @@ static int radio[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
                                      -1, -1, -1, -1, -1, -1, -1, -1,
                                      -1, -1, -1, -1, -1, -1, -1, -1 };
 
-static int cardtype_c = 1;
-static int tuner_c = 1;
-static int radio_c = 1;
+static unsigned cardtype_c = 1;
+static unsigned tuner_c = 1;
+static unsigned radio_c = 1;
 static char pal[] = "--";
 static char secam[] = "--";
 static char ntsc[] = "-";
diff --git a/drivers/media/video/cx18/cx18-queue.c b/drivers/media/video/cx18/cx18-queue.c
index 8a4dd821fd91..a31da49f9123 100644
--- a/drivers/media/video/cx18/cx18-queue.c
+++ b/drivers/media/video/cx18/cx18-queue.c
@@ -217,10 +217,10 @@ int cx18_stream_alloc(struct cx18_stream *s)
                 s->name, s->buffers, s->buf_size,
                 s->buffers * s->buf_size / 1024);
 
-        if (((char *)&cx->scb->cpu_mdl[cx->mdl_offset + s->buffers] -
-                                (char *)cx->scb) > SCB_RESERVED_SIZE) {
-                unsigned bufsz = (((char *)cx->scb) + SCB_RESERVED_SIZE -
-                                        ((char *)cx->scb->cpu_mdl));
+        if (((char __iomem *)&cx->scb->cpu_mdl[cx->mdl_offset + s->buffers] -
+                                (char __iomem *)cx->scb) > SCB_RESERVED_SIZE) {
+                unsigned bufsz = (((char __iomem *)cx->scb) + SCB_RESERVED_SIZE -
+                                        ((char __iomem *)cx->scb->cpu_mdl));
 
                 CX18_ERR("Too many buffers, cannot fit in SCB area\n");
                 CX18_ERR("Max buffers = %zd\n",
diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 3461bc9e4739..0b292ca0c080 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -1401,7 +1401,7 @@ static int vidioc_dqbuf(struct file *file, void *priv,
         i = ret;                                /* frame index */
         frame = &gspca_dev->frame[i];
         if (gspca_dev->memory == V4L2_MEMORY_USERPTR) {
-                if (copy_to_user((__u8 *) frame->v4l2_buf.m.userptr,
+                if (copy_to_user((__u8 __user *) frame->v4l2_buf.m.userptr,
                                  frame->data,
                                  frame->v4l2_buf.bytesused)) {
                         PDEBUG(D_ERR|D_STREAM,
diff --git a/drivers/media/video/ks0127.c b/drivers/media/video/ks0127.c
index 4895540be195..2fd4b4a44aa9 100644
--- a/drivers/media/video/ks0127.c
+++ b/drivers/media/video/ks0127.c
@@ -679,26 +679,27 @@ static int ks0127_command(struct i2c_client *client,
 
         case DECODER_ENABLE_OUTPUT:
         {
+                int enable;
 
-                int *iarg = arg;
-                int enable = (*iarg != 0);
-                        if (enable) {
-                                dprintk("ks0127: command "
+                iarg = arg;
+                enable = (*iarg != 0);
+                if (enable) {
+                        dprintk("ks0127: command "
                                         "DECODER_ENABLE_OUTPUT on "
                                         "(%d)\n", enable);
-                                /* All output pins on */
-                                ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x30);
-                                /* Obey the OEN pin */
-                                ks0127_and_or(ks, KS_CDEM, 0x7f, 0x00);
-                        } else {
-                                dprintk("ks0127: command "
+                        /* All output pins on */
+                        ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x30);
+                        /* Obey the OEN pin */
+                        ks0127_and_or(ks, KS_CDEM, 0x7f, 0x00);
+                } else {
+                        dprintk("ks0127: command "
                                         "DECODER_ENABLE_OUTPUT off "
                                         "(%d)\n", enable);
-                                /* Video output pins off */
-                                ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x00);
-                                /* Ignore the OEN pin */
-                                ks0127_and_or(ks, KS_CDEM, 0x7f, 0x80);
-                        }
+                        /* Video output pins off */
+                        ks0127_and_or(ks, KS_OFMTA, 0xcf, 0x00);
+                        /* Ignore the OEN pin */
+                        ks0127_and_or(ks, KS_CDEM, 0x7f, 0x80);
+                }
         }
                 break;
 
diff --git a/drivers/media/video/mxb.c b/drivers/media/video/mxb.c
index f68e91fbe7fb..8ef578caba3b 100644
--- a/drivers/media/video/mxb.c
+++ b/drivers/media/video/mxb.c
@@ -931,27 +931,29 @@ static int mxb_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
         return 0;
 }
 
-static int std_callback(struct saa7146_dev* dev, struct saa7146_standard *std)
+static int std_callback(struct saa7146_dev *dev, struct saa7146_standard *standard)
 {
-        struct mxb* mxb = (struct mxb*)dev->ext_priv;
+        struct mxb *mxb = (struct mxb *)dev->ext_priv;
         int zero = 0;
         int one = 1;
 
-        if(V4L2_STD_PAL_I == std->id ) {
+        if (V4L2_STD_PAL_I == standard->id) {
                 v4l2_std_id std = V4L2_STD_PAL_I;
+
                 DEB_D(("VIDIOC_S_STD: setting mxb for PAL_I.\n"));
                 /* set the 7146 gpio register -- I don't know what this does exactly */
                 saa7146_write(dev, GPIO_CTRL, 0x00404050);
                 /* unset the 7111 gpio register -- I don't know what this does exactly */
-                mxb->saa7111a->driver->command(mxb->saa7111a,DECODER_SET_GPIO, &zero);
+                mxb->saa7111a->driver->command(mxb->saa7111a, DECODER_SET_GPIO, &zero);
                 mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_STD, &std);
         } else {
                 v4l2_std_id std = V4L2_STD_PAL_BG;
+
                 DEB_D(("VIDIOC_S_STD: setting mxb for PAL/NTSC/SECAM.\n"));
                 /* set the 7146 gpio register -- I don't know what this does exactly */
                 saa7146_write(dev, GPIO_CTRL, 0x00404050);
                 /* set the 7111 gpio register -- I don't know what this does exactly */
-                mxb->saa7111a->driver->command(mxb->saa7111a,DECODER_SET_GPIO, &one);
+                mxb->saa7111a->driver->command(mxb->saa7111a, DECODER_SET_GPIO, &one);
                 mxb->tuner->driver->command(mxb->tuner, VIDIOC_S_STD, &std);
         }
         return 0;
diff --git a/drivers/media/video/ov511.c b/drivers/media/video/ov511.c
index 9edaca4371d7..3d3c48db45d9 100644
--- a/drivers/media/video/ov511.c
+++ b/drivers/media/video/ov511.c
@@ -626,9 +626,9 @@ ov511_i2c_write_internal(struct usb_ov511 *ov,
                         break;
 
                 /* Retry until idle */
-                do
+                do {
                         rc = reg_r(ov, R511_I2C_CTL);
-                while (rc > 0 && ((rc&1) == 0));
+                } while (rc > 0 && ((rc&1) == 0));
                 if (rc < 0)
                         break;
 
@@ -703,9 +703,9 @@ ov511_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg)
                         return rc;
 
                 /* Retry until idle */
-                do
-                         rc = reg_r(ov, R511_I2C_CTL);
-                while (rc > 0 && ((rc&1) == 0));
+                do {
+                        rc = reg_r(ov, R511_I2C_CTL);
+                } while (rc > 0 && ((rc & 1) == 0));
                 if (rc < 0)
                         return rc;
 
@@ -729,9 +729,9 @@ ov511_i2c_read_internal(struct usb_ov511 *ov, unsigned char reg)
                         return rc;
 
                 /* Retry until idle */
-                do
+                do {
                         rc = reg_r(ov, R511_I2C_CTL);
-                while (rc > 0 && ((rc&1) == 0));
+                } while (rc > 0 && ((rc&1) == 0));
                 if (rc < 0)
                         return rc;
 
diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c
index 1cccd5c77048..dbc560742553 100644
--- a/drivers/media/video/pwc/pwc-ctrl.c
+++ b/drivers/media/video/pwc/pwc-ctrl.c
@@ -1635,15 +1635,15 @@ int pwc_ioctl(struct pwc_device *pdev, unsigned int cmd, void *arg)
 
         case VIDIOCPWCGVIDCMD:
         {
-                ARG_DEF(struct pwc_video_command, cmd);
-
-                ARGR(cmd).type = pdev->type;
-                ARGR(cmd).release = pdev->release;
-                ARGR(cmd).command_len = pdev->cmd_len;
-                memcpy(&ARGR(cmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
-                ARGR(cmd).bandlength = pdev->vbandlength;
-                ARGR(cmd).frame_size = pdev->frame_size;
-                ARG_OUT(cmd)
+                ARG_DEF(struct pwc_video_command, vcmd);
+
+                ARGR(vcmd).type = pdev->type;
+                ARGR(vcmd).release = pdev->release;
+                ARGR(vcmd).command_len = pdev->cmd_len;
+                memcpy(&ARGR(vcmd).command_buf, pdev->cmd_buf, pdev->cmd_len);
+                ARGR(vcmd).bandlength = pdev->vbandlength;
+                ARGR(vcmd).frame_size = pdev->frame_size;
+                ARG_OUT(vcmd)
                 break;
         }
         /*
diff --git a/drivers/media/video/usbvideo/ibmcam.c b/drivers/media/video/usbvideo/ibmcam.c
index 59166b760104..cc27efe121dd 100644
--- a/drivers/media/video/usbvideo/ibmcam.c
+++ b/drivers/media/video/usbvideo/ibmcam.c
@@ -736,12 +736,12 @@ static enum ParseState ibmcam_model2_320x240_parse_lines(
                  * make black color and quit the horizontal scanning loop.
                  */
                 if (((frame->curline + 2) >= scanHeight) || (i >= scanLength)) {
-                        const int j = i * V4L_BYTES_PER_PIXEL;
+                        const int offset = i * V4L_BYTES_PER_PIXEL;
 #if USES_IBMCAM_PUTPIXEL
                         /* Refresh 'f' because we don't use it much with PUTPIXEL */
-                        f = frame->data + (v4l_linesize * frame->curline) + j;
+                        f = frame->data + (v4l_linesize * frame->curline) + offset;
 #endif
-                        memset(f, 0, v4l_linesize - j);
+                        memset(f, 0, v4l_linesize - offset);
                         break;
                 }