18 files changed, 190 insertions, 87 deletions

diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index e9da874d0419..03688c2da319 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -113,7 +113,7 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev,
                         memcpy(buf, dev->bounce_buf+offset, size);
                 offset += size;
                 flush_kernel_dcache_page(bvec->bv_page);
-                bvec_kunmap_irq(bvec, &flags);
+                bvec_kunmap_irq(buf, &flags);
                 i++;
         }
 }
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index c810481a5bc2..0f69c5ec0ecd 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -459,9 +459,12 @@ static ssize_t send_buf(struct port *port, void *in_buf, size_t in_count,
 
         /*
          * Wait till the host acknowledges it pushed out the data we
-         * sent.  This is done for ports in blocking mode or for data
-         * from the hvc_console; the tty operations are performed with
-         * spinlocks held so we can't sleep here.
+         * sent.  This is done for data from the hvc_console; the tty
+         * operations are performed with spinlocks held so we can't
+         * sleep here.  An alternative would be to copy the data to a
+         * buffer and relax the spinning requirement.  The downside is
+         * we need to kmalloc a GFP_ATOMIC buffer each time the
+         * console driver writes something out.
          */
         while (!virtqueue_get_buf(out_vq, &len))
                 cpu_relax();
@@ -626,6 +629,14 @@ static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,
                 goto free_buf;
         }
 
+        /*
+         * We now ask send_buf() to not spin for generic ports -- we
+         * can re-use the same code path that non-blocking file
+         * descriptors take for blocking file descriptors since the
+         * wait is already done and we're certain the write will go
+         * through to the host.
+         */
+        nonblock = true;
         ret = send_buf(port, buf, count, nonblock);
 
         if (nonblock && ret > 0)
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 1b05896648bc..9dcb17d51aee 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -2840,7 +2840,7 @@ static int __devinit pci_probe(struct pci_dev *dev,
                                const struct pci_device_id *ent)
 {
         struct fw_ohci *ohci;
-        u32 bus_options, max_receive, link_speed, version, link_enh;
+        u32 bus_options, max_receive, link_speed, version;
         u64 guid;
         int i, err, n_ir, n_it;
         size_t size;
@@ -2894,23 +2894,6 @@ static int __devinit pci_probe(struct pci_dev *dev,
         if (param_quirks)
                 ohci->quirks = param_quirks;
 
-        /* TI OHCI-Lynx and compatible: set recommended configuration bits. */
-        if (dev->vendor == PCI_VENDOR_ID_TI) {
-                pci_read_config_dword(dev, PCI_CFG_TI_LinkEnh, &link_enh);
-
-                /* adjust latency of ATx FIFO: use 1.7 KB threshold */
-                link_enh &= ~TI_LinkEnh_atx_thresh_mask;
-                link_enh |= TI_LinkEnh_atx_thresh_1_7K;
-
-                /* use priority arbitration for asynchronous responses */
-                link_enh |= TI_LinkEnh_enab_unfair;
-
-                /* required for aPhyEnhanceEnable to work */
-                link_enh |= TI_LinkEnh_enab_accel;
-
-                pci_write_config_dword(dev, PCI_CFG_TI_LinkEnh, link_enh);
-        }
-
         ar_context_init(&ohci->ar_request_ctx, ohci,
                         OHCI1394_AsReqRcvContextControlSet);
 
diff --git a/drivers/firewire/ohci.h b/drivers/firewire/ohci.h
index 0e6c5a466908..ef5e7336da68 100644
--- a/drivers/firewire/ohci.h
+++ b/drivers/firewire/ohci.h
@@ -155,12 +155,4 @@
 
 #define OHCI1394_phy_tcode              0xe
 
-/* TI extensions */
-
-#define PCI_CFG_TI_LinkEnh              0xf4
-#define  TI_LinkEnh_enab_accel          0x00000002
-#define  TI_LinkEnh_enab_unfair         0x00000080
-#define  TI_LinkEnh_atx_thresh_mask     0x00003000
-#define  TI_LinkEnh_atx_thresh_1_7K     0x00001000
-
 #endif /* _FIREWIRE_OHCI_H */
diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index 5731fc9b1ae3..3eef567b0421 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -203,6 +203,7 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
         struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
         struct radeon_device *rdev = crtc->dev->dev_private;
         int xorigin = 0, yorigin = 0;
+        int w = radeon_crtc->cursor_width;
 
         if (x < 0)
                 xorigin = -x + 1;
@@ -213,22 +214,7 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
         if (yorigin >= CURSOR_HEIGHT)
                 yorigin = CURSOR_HEIGHT - 1;
 
-        radeon_lock_cursor(crtc, true);
-        if (ASIC_IS_DCE4(rdev)) {
-                /* cursors are offset into the total surface */
-                x += crtc->x;
-                y += crtc->y;
-                DRM_DEBUG("x %d y %d c->x %d c->y %d\n", x, y, crtc->x, crtc->y);
-
-                /* XXX: check if evergreen has the same issues as avivo chips */
-                WREG32(EVERGREEN_CUR_POSITION + radeon_crtc->crtc_offset,
-                       ((xorigin ? 0 : x) << 16) |
-                       (yorigin ? 0 : y));
-                WREG32(EVERGREEN_CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin);
-                WREG32(EVERGREEN_CUR_SIZE + radeon_crtc->crtc_offset,
-                       ((radeon_crtc->cursor_width - 1) << 16) | (radeon_crtc->cursor_height - 1));
-        } else if (ASIC_IS_AVIVO(rdev)) {
-                int w = radeon_crtc->cursor_width;
+        if (ASIC_IS_AVIVO(rdev)) {
                 int i = 0;
                 struct drm_crtc *crtc_p;
 
@@ -260,7 +246,17 @@ int radeon_crtc_cursor_move(struct drm_crtc *crtc,
                         if (w <= 0)
                                 w = 1;
                 }
+        }
 
+        radeon_lock_cursor(crtc, true);
+        if (ASIC_IS_DCE4(rdev)) {
+                WREG32(EVERGREEN_CUR_POSITION + radeon_crtc->crtc_offset,
+                       ((xorigin ? 0 : x) << 16) |
+                       (yorigin ? 0 : y));
+                WREG32(EVERGREEN_CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin);
+                WREG32(EVERGREEN_CUR_SIZE + radeon_crtc->crtc_offset,
+                       ((w - 1) << 16) | (radeon_crtc->cursor_height - 1));
+        } else if (ASIC_IS_AVIVO(rdev)) {
                 WREG32(AVIVO_D1CUR_POSITION + radeon_crtc->crtc_offset,
                              ((xorigin ? 0 : x) << 16) |
                              (yorigin ? 0 : y));
diff --git a/drivers/hid/hid-cando.c b/drivers/hid/hid-cando.c
index 4267a6fdc277..5925bdcd417d 100644
--- a/drivers/hid/hid-cando.c
+++ b/drivers/hid/hid-cando.c
@@ -237,6 +237,8 @@ static const struct hid_device_id cando_devices[] = {
                         USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
                         USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+                USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
         { }
 };
 MODULE_DEVICE_TABLE(hid, cando_devices);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 3f7292486024..a0dea3d1296e 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1292,6 +1292,7 @@ static const struct hid_device_id hid_blacklist[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 765a4f53eb5c..c5ae5f1545bd 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -134,6 +134,7 @@
 #define USB_VENDOR_ID_CANDO             0x2087
 #define USB_DEVICE_ID_CANDO_MULTI_TOUCH 0x0a01
 #define USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6 0x0b03
+#define USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6 0x0f01
 
 #define USB_VENDOR_ID_CH                0x068e
 #define USB_DEVICE_ID_CH_PRO_PEDALS     0x00f2
@@ -503,6 +504,7 @@
 
 #define USB_VENDOR_ID_TURBOX            0x062a
 #define USB_DEVICE_ID_TURBOX_KEYBOARD   0x0201
+#define USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART 0x7100
 
 #define USB_VENDOR_ID_TWINHAN           0x6253
 #define USB_DEVICE_ID_TWINHAN_IR_REMOTE 0x0100
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 47d70c523d93..a3866b5c0c43 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -109,6 +109,12 @@ static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t
         int ret = 0;
 
         mutex_lock(&minors_lock);
+
+        if (!hidraw_table[minor]) {
+                ret = -ENODEV;
+                goto out;
+        }
+
         dev = hidraw_table[minor]->hid;
 
         if (!dev->hid_output_raw_report) {
@@ -244,6 +250,10 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd,
 
         mutex_lock(&minors_lock);
         dev = hidraw_table[minor];
+        if (!dev) {
+                ret = -ENODEV;
+                goto out;
+        }
 
         switch (cmd) {
                 case HIDIOCGRDESCSIZE:
@@ -317,6 +327,7 @@ static long hidraw_ioctl(struct file *file, unsigned int cmd,
 
                 ret = -ENOTTY;
         }
+out:
         mutex_unlock(&minors_lock);
         return ret;
 }
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 70da3181c8a0..f0260c699adb 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -36,6 +36,7 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER, HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET },
         { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER, HID_QUIRK_MULTI_INPUT },
+        { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index b8feac5f2ef4..5795c8398c7c 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -331,21 +331,16 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
         INIT_COMPLETION(dev->cmd_complete);
         dev->cmd_err = 0;
 
-        /* Take I2C out of reset, configure it as master and set the
-         * start bit */
-        flag = DAVINCI_I2C_MDR_IRS | DAVINCI_I2C_MDR_MST | DAVINCI_I2C_MDR_STT;
+        /* Take I2C out of reset and configure it as master */
+        flag = DAVINCI_I2C_MDR_IRS | DAVINCI_I2C_MDR_MST;
 
         /* if the slave address is ten bit address, enable XA bit */
         if (msg->flags & I2C_M_TEN)
                 flag |= DAVINCI_I2C_MDR_XA;
         if (!(msg->flags & I2C_M_RD))
                 flag |= DAVINCI_I2C_MDR_TRX;
-        if (stop)
-                flag |= DAVINCI_I2C_MDR_STP;
-        if (msg->len == 0) {
+        if (msg->len == 0)
                 flag |= DAVINCI_I2C_MDR_RM;
-                flag &= ~DAVINCI_I2C_MDR_STP;
-        }
 
         /* Enable receive or transmit interrupts */
         w = davinci_i2c_read_reg(dev, DAVINCI_I2C_IMR_REG);
@@ -358,17 +353,28 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
         dev->terminate = 0;
 
         /*
+         * Write mode register first as needed for correct behaviour
+         * on OMAP-L138, but don't set STT yet to avoid a race with XRDY
+         * occuring before we have loaded DXR
+         */
+        davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag);
+
+        /*
          * First byte should be set here, not after interrupt,
          * because transmit-data-ready interrupt can come before
          * NACK-interrupt during sending of previous message and
          * ICDXR may have wrong data
+         * It also saves us one interrupt, slightly faster
          */
         if ((!(msg->flags & I2C_M_RD)) && dev->buf_len) {
                 davinci_i2c_write_reg(dev, DAVINCI_I2C_DXR_REG, *dev->buf++);
                 dev->buf_len--;
         }
 
-        /* write the data into mode register; start transmitting */
+        /* Set STT to begin transmit now DXR is loaded */
+        flag |= DAVINCI_I2C_MDR_STT;
+        if (stop && msg->len != 0)
+                flag |= DAVINCI_I2C_MDR_STP;
         davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag);
 
         r = wait_for_completion_interruptible_timeout(&dev->cmd_complete,
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index d1ff9408dc1f..4c2a62b75b5c 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -159,15 +159,9 @@ static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)
 
 static int i2c_imx_trx_complete(struct imx_i2c_struct *i2c_imx)
 {
-        int result;
-
-        result = wait_event_interruptible_timeout(i2c_imx->queue,
-                i2c_imx->i2csr & I2SR_IIF, HZ / 10);
+        wait_event_timeout(i2c_imx->queue, i2c_imx->i2csr & I2SR_IIF, HZ / 10);
 
-        if (unlikely(result < 0)) {
-                dev_dbg(&i2c_imx->adapter.dev, "<%s> result < 0\n", __func__);
-                return result;
-        } else if (unlikely(!(i2c_imx->i2csr & I2SR_IIF))) {
+        if (unlikely(!(i2c_imx->i2csr & I2SR_IIF))) {
                 dev_dbg(&i2c_imx->adapter.dev, "<%s> Timeout\n", __func__);
                 return -ETIMEDOUT;
         }
@@ -295,7 +289,7 @@ static irqreturn_t i2c_imx_isr(int irq, void *dev_id)
                 i2c_imx->i2csr = temp;
                 temp &= ~I2SR_IIF;
                 writeb(temp, i2c_imx->base + IMX_I2C_I2SR);
-                wake_up_interruptible(&i2c_imx->queue);
+                wake_up(&i2c_imx->queue);
                 return IRQ_HANDLED;
         }
 
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index c908c5f83645..9ddafc30f432 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -669,6 +669,9 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
 
                 if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCGABS(0))) {
 
+                        if (!dev->absinfo)
+                                return -EINVAL;
+
                         t = _IOC_NR(cmd) & ABS_MAX;
                         abs = dev->absinfo[t];
 
@@ -680,10 +683,13 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
                 }
         }
 
-        if (_IOC_DIR(cmd) == _IOC_READ) {
+        if (_IOC_DIR(cmd) == _IOC_WRITE) {
 
                 if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCSABS(0))) {
 
+                        if (!dev->absinfo)
+                                return -EINVAL;
+
                         t = _IOC_NR(cmd) & ABS_MAX;
 
                         if (copy_from_user(&abs, p, min_t(size_t,
diff --git a/drivers/media/video/v4l2-compat-ioctl32.c b/drivers/media/video/v4l2-compat-ioctl32.c
index 073f01390cdd..86294ed35c9b 100644
--- a/drivers/media/video/v4l2-compat-ioctl32.c
+++ b/drivers/media/video/v4l2-compat-ioctl32.c
@@ -193,17 +193,24 @@ static int put_video_window32(struct video_window *kp, struct video_window32 __u
 struct video_code32 {
         char            loadwhat[16];   /* name or tag of file being passed */
         compat_int_t    datasize;
-        unsigned char   *data;
+        compat_uptr_t   data;
 };
 
-static int get_microcode32(struct video_code *kp, struct video_code32 __user *up)
+static struct video_code __user *get_microcode32(struct video_code32 *kp)
 {
-        if (!access_ok(VERIFY_READ, up, sizeof(struct video_code32)) ||
-                copy_from_user(kp->loadwhat, up->loadwhat, sizeof(up->loadwhat)) ||
-                get_user(kp->datasize, &up->datasize) ||
-                copy_from_user(kp->data, up->data, up->datasize))
-                        return -EFAULT;
-        return 0;
+        struct video_code __user *up;
+
+        up = compat_alloc_user_space(sizeof(*up));
+
+        /*
+         * NOTE! We don't actually care if these fail. If the
+         * user address is invalid, the native ioctl will do
+         * the error handling for us
+         */
+        (void) copy_to_user(up->loadwhat, kp->loadwhat, sizeof(up->loadwhat));
+        (void) put_user(kp->datasize, &up->datasize);
+        (void) put_user(compat_ptr(kp->data), &up->data);
+        return up;
 }
 
 #define VIDIOCGTUNER32          _IOWR('v', 4, struct video_tuner32)
@@ -739,7 +746,7 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
                 struct video_tuner vt;
                 struct video_buffer vb;
                 struct video_window vw;
-                struct video_code vc;
+                struct video_code32 vc;
                 struct video_audio va;
 #endif
                 struct v4l2_format v2f;
@@ -818,8 +825,11 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar
                 break;
 
         case VIDIOCSMICROCODE:
-                err = get_microcode32(&karg.vc, up);
-                compatible_arg = 0;
+                /* Copy the 32-bit "video_code32" to kernel space */
+                if (copy_from_user(&karg.vc, up, sizeof(karg.vc)))
+                        return -EFAULT;
+                /* Convert the 32-bit version to a 64-bit version in user space */
+                up = get_microcode32(&karg.vc);
                 break;
 
         case VIDIOCSFREQ:
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 5db49b124ffa..09eee6df0653 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1631,6 +1631,19 @@ int mmc_suspend_host(struct mmc_host *host)
         if (host->bus_ops && !host->bus_dead) {
                 if (host->bus_ops->suspend)
                         err = host->bus_ops->suspend(host);
+                if (err == -ENOSYS || !host->bus_ops->resume) {
+                        /*
+                         * We simply "remove" the card in this case.
+                         * It will be redetected on resume.
+                         */
+                        if (host->bus_ops->remove)
+                                host->bus_ops->remove(host);
+                        mmc_claim_host(host);
+                        mmc_detach_bus(host);
+                        mmc_release_host(host);
+                        host->pm_flags = 0;
+                        err = 0;
+                }
         }
         mmc_bus_put(host);
 
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index b2828e84d243..214b03afdd48 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -30,6 +30,8 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/completion.h>
 
 #include <asm/mach/flash.h>
 #include <mach/mxc_nand.h>
@@ -151,7 +153,7 @@ struct mxc_nand_host {
         int                     irq;
         int                     eccsize;
 
-        wait_queue_head_t       irq_waitq;
+        struct completion       op_completion;
 
         uint8_t                 *data_buf;
         unsigned int            buf_start;
@@ -164,6 +166,7 @@ struct mxc_nand_host {
         void                    (*send_read_id)(struct mxc_nand_host *);
         uint16_t                (*get_dev_status)(struct mxc_nand_host *);
         int                     (*check_int)(struct mxc_nand_host *);
+        void                    (*irq_control)(struct mxc_nand_host *, int);
 };
 
 /* OOB placement block for use with hardware ecc generation */
@@ -216,9 +219,12 @@ static irqreturn_t mxc_nfc_irq(int irq, void *dev_id)
 {
         struct mxc_nand_host *host = dev_id;
 
-        disable_irq_nosync(irq);
+        if (!host->check_int(host))
+                return IRQ_NONE;
 
-        wake_up(&host->irq_waitq);
+        host->irq_control(host, 0);
+
+        complete(&host->op_completion);
 
         return IRQ_HANDLED;
 }
@@ -245,11 +251,54 @@ static int check_int_v1_v2(struct mxc_nand_host *host)
         if (!(tmp & NFC_V1_V2_CONFIG2_INT))
                 return 0;
 
-        writew(tmp & ~NFC_V1_V2_CONFIG2_INT, NFC_V1_V2_CONFIG2);
+        if (!cpu_is_mx21())
+                writew(tmp & ~NFC_V1_V2_CONFIG2_INT, NFC_V1_V2_CONFIG2);
 
         return 1;
 }
 
+/*
+ * It has been observed that the i.MX21 cannot read the CONFIG2:INT bit
+ * if interrupts are masked (CONFIG1:INT_MSK is set). To handle this, the
+ * driver can enable/disable the irq line rather than simply masking the
+ * interrupts.
+ */
+static void irq_control_mx21(struct mxc_nand_host *host, int activate)
+{
+        if (activate)
+                enable_irq(host->irq);
+        else
+                disable_irq_nosync(host->irq);
+}
+
+static void irq_control_v1_v2(struct mxc_nand_host *host, int activate)
+{
+        uint16_t tmp;
+
+        tmp = readw(NFC_V1_V2_CONFIG1);
+
+        if (activate)
+                tmp &= ~NFC_V1_V2_CONFIG1_INT_MSK;
+        else
+                tmp |= NFC_V1_V2_CONFIG1_INT_MSK;
+
+        writew(tmp, NFC_V1_V2_CONFIG1);
+}
+
+static void irq_control_v3(struct mxc_nand_host *host, int activate)
+{
+        uint32_t tmp;
+
+        tmp = readl(NFC_V3_CONFIG2);
+
+        if (activate)
+                tmp &= ~NFC_V3_CONFIG2_INT_MSK;
+        else
+                tmp |= NFC_V3_CONFIG2_INT_MSK;
+
+        writel(tmp, NFC_V3_CONFIG2);
+}
+
 /* This function polls the NANDFC to wait for the basic operation to
  * complete by checking the INT bit of config2 register.
  */
@@ -259,10 +308,9 @@ static void wait_op_done(struct mxc_nand_host *host, int useirq)
 
         if (useirq) {
                 if (!host->check_int(host)) {
-
-                        enable_irq(host->irq);
-
-                        wait_event(host->irq_waitq, host->check_int(host));
+                        INIT_COMPLETION(host->op_completion);
+                        host->irq_control(host, 1);
+                        wait_for_completion(&host->op_completion);
                 }
         } else {
                 while (max_retries-- > 0) {
@@ -799,6 +847,7 @@ static void preset_v3(struct mtd_info *mtd)
                 NFC_V3_CONFIG2_2CMD_PHASES |
                 NFC_V3_CONFIG2_SPAS(mtd->oobsize >> 1) |
                 NFC_V3_CONFIG2_ST_CMD(0x70) |
+                NFC_V3_CONFIG2_INT_MSK |
                 NFC_V3_CONFIG2_NUM_ADDR_PHASE0;
 
         if (chip->ecc.mode == NAND_ECC_HW)
@@ -1024,6 +1073,10 @@ static int __init mxcnd_probe(struct platform_device *pdev)
                 host->send_read_id = send_read_id_v1_v2;
                 host->get_dev_status = get_dev_status_v1_v2;
                 host->check_int = check_int_v1_v2;
+                if (cpu_is_mx21())
+                        host->irq_control = irq_control_mx21;
+                else
+                        host->irq_control = irq_control_v1_v2;
         }
 
         if (nfc_is_v21()) {
@@ -1062,6 +1115,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
                 host->send_read_id = send_read_id_v3;
                 host->check_int = check_int_v3;
                 host->get_dev_status = get_dev_status_v3;
+                host->irq_control = irq_control_v3;
                 oob_smallpage = &nandv2_hw_eccoob_smallpage;
                 oob_largepage = &nandv2_hw_eccoob_largepage;
         } else
@@ -1093,14 +1147,34 @@ static int __init mxcnd_probe(struct platform_device *pdev)
                 this->options |= NAND_USE_FLASH_BBT;
         }
 
-        init_waitqueue_head(&host->irq_waitq);
+        init_completion(&host->op_completion);
 
         host->irq = platform_get_irq(pdev, 0);
 
+        /*
+         * mask the interrupt. For i.MX21 explicitely call
+         * irq_control_v1_v2 to use the mask bit. We can't call
+         * disable_irq_nosync() for an interrupt we do not own yet.
+         */
+        if (cpu_is_mx21())
+                irq_control_v1_v2(host, 0);
+        else
+                host->irq_control(host, 0);
+
         err = request_irq(host->irq, mxc_nfc_irq, IRQF_DISABLED, DRIVER_NAME, host);
         if (err)
                 goto eirq;
 
+        host->irq_control(host, 0);
+
+        /*
+         * Now that the interrupt is disabled make sure the interrupt
+         * mask bit is cleared on i.MX21. Otherwise we can't read
+         * the interrupt status bit on this machine.
+         */
+        if (cpu_is_mx21())
+                irq_control_v1_v2(host, 1);
+
         /* first scan to find the device and get the page size */
         if (nand_scan_ident(mtd, 1, NULL)) {
                 err = -ENXIO;
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index ad0ed212db4a..348fba0a8976 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -1046,13 +1046,13 @@ int scsi_get_vpd_page(struct scsi_device *sdev, u8 page, unsigned char *buf,
 
         /* If the user actually wanted this page, we can skip the rest */
         if (page == 0)
-                return -EINVAL;
+                return 0;
 
         for (i = 0; i < min((int)buf[3], buf_len - 4); i++)
                 if (buf[i + 4] == page)
                         goto found;
 
-        if (i < buf[3] && i > buf_len)
+        if (i < buf[3] && i >= buf_len - 4)
                 /* ran off the end of the buffer, give us benefit of doubt */
                 goto found;
         /* The device claims it doesn't support the requested page */
diff --git a/drivers/serial/ioc3_serial.c b/drivers/serial/ioc3_serial.c
index 93de907b1208..800c54602339 100644
--- a/drivers/serial/ioc3_serial.c
+++ b/drivers/serial/ioc3_serial.c
@@ -2044,6 +2044,7 @@ ioc3uart_probe(struct ioc3_submodule *is, struct ioc3_driver_data *idd)
                 if (!port) {
                         printk(KERN_WARNING
                                "IOC3 serial memory not available for port\n");
+                        ret = -ENOMEM;
                         goto out4;
                 }
                 spin_lock_init(&port->ip_lock);