Merge commit 'v2.6.28-rc2' into x86/pci-ioapic-boot-irq-quirks

8 files changed, 463 insertions, 131 deletions

diff --git a/drivers/media/video/uvc/Kconfig b/drivers/media/video/uvc/Kconfig
new file mode 100644
index 000000000000..c2d9760de832
--- /dev/null
+++ b/drivers/media/video/uvc/Kconfig
@@ -0,0 +1,17 @@
+config USB_VIDEO_CLASS
+	tristate "USB Video Class (UVC)"
+	---help---
+	  Support for the USB Video Class (UVC).  Currently only video
+	  input devices, such as webcams, are supported.
+
+	  For more information see: <http://linux-uvc.berlios.de/>
+
+config USB_VIDEO_CLASS_INPUT_EVDEV
+	bool "UVC input events device support"
+	default y
+	depends on USB_VIDEO_CLASS && INPUT
+	---help---
+	  This option makes USB Video Class devices register an input device
+	  to report button events.
+
+	  If you are in doubt, say Y.
diff --git a/drivers/media/video/uvc/uvc_ctrl.c b/drivers/media/video/uvc/uvc_ctrl.c
index f0ee46d15540..f16aafe9cf14 100644
--- a/drivers/media/video/uvc/uvc_ctrl.c
+++ b/drivers/media/video/uvc/uvc_ctrl.c
@@ -83,6 +83,22 @@ static struct uvc_control_info uvc_ctrls[] = {
 	},
 	{
 		.entity		= UVC_GUID_UVC_PROCESSING,
+		.selector	= PU_WHITE_BALANCE_TEMPERATURE_CONTROL,
+		.index		= 6,
+		.size		= 2,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_PROCESSING,
+		.selector	= PU_WHITE_BALANCE_COMPONENT_CONTROL,
+		.index		= 7,
+		.size		= 4,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_PROCESSING,
 		.selector	= PU_BACKLIGHT_COMPENSATION_CONTROL,
 		.index		= 8,
 		.size		= 2,
@@ -114,6 +130,60 @@ static struct uvc_control_info uvc_ctrls[] = {
 				| UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE,
 	},
 	{
+		.entity		= UVC_GUID_UVC_PROCESSING,
+		.selector	= PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL,
+		.index		= 12,
+		.size		= 1,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
+				| UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_PROCESSING,
+		.selector	= PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL,
+		.index		= 13,
+		.size		= 1,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
+				| UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_PROCESSING,
+		.selector	= PU_DIGITAL_MULTIPLIER_CONTROL,
+		.index		= 14,
+		.size		= 2,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_RESTORE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_PROCESSING,
+		.selector	= PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL,
+		.index		= 15,
+		.size		= 2,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_RESTORE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_PROCESSING,
+		.selector	= PU_ANALOG_VIDEO_STANDARD_CONTROL,
+		.index		= 16,
+		.size		= 1,
+		.flags		= UVC_CONTROL_GET_CUR,
+	},
+	{
+		.entity		= UVC_GUID_UVC_PROCESSING,
+		.selector	= PU_ANALOG_LOCK_STATUS_CONTROL,
+		.index		= 17,
+		.size		= 1,
+		.flags		= UVC_CONTROL_GET_CUR,
+	},
+	{
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_SCANNING_MODE_CONTROL,
+		.index		= 0,
+		.size		= 1,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
+				| UVC_CONTROL_RESTORE,
+	},
+	{
 		.entity		= UVC_GUID_UVC_CAMERA,
 		.selector	= CT_AE_MODE_CONTROL,
 		.index		= 1,
@@ -140,6 +210,14 @@ static struct uvc_control_info uvc_ctrls[] = {
 	},
 	{
 		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_EXPOSURE_TIME_RELATIVE_CONTROL,
+		.index		= 4,
+		.size		= 1,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
+				| UVC_CONTROL_RESTORE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_CAMERA,
 		.selector	= CT_FOCUS_ABSOLUTE_CONTROL,
 		.index		= 5,
 		.size		= 2,
@@ -148,42 +226,90 @@ static struct uvc_control_info uvc_ctrls[] = {
 	},
 	{
 		.entity		= UVC_GUID_UVC_CAMERA,
-		.selector	= CT_FOCUS_AUTO_CONTROL,
-		.index		= 17,
-		.size		= 1,
-		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
-				| UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE,
+		.selector	= CT_FOCUS_RELATIVE_CONTROL,
+		.index		= 6,
+		.size		= 2,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_AUTO_UPDATE,
 	},
 	{
-		.entity		= UVC_GUID_UVC_PROCESSING,
-		.selector	= PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL,
-		.index		= 12,
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_IRIS_ABSOLUTE_CONTROL,
+		.index		= 7,
+		.size		= 2,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_IRIS_RELATIVE_CONTROL,
+		.index		= 8,
 		.size		= 1,
 		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
-				| UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE,
+				| UVC_CONTROL_AUTO_UPDATE,
 	},
 	{
-		.entity		= UVC_GUID_UVC_PROCESSING,
-		.selector	= PU_WHITE_BALANCE_TEMPERATURE_CONTROL,
-		.index		= 6,
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_ZOOM_ABSOLUTE_CONTROL,
+		.index		= 9,
 		.size		= 2,
 		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
 				| UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE,
 	},
 	{
-		.entity		= UVC_GUID_UVC_PROCESSING,
-		.selector	= PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL,
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_ZOOM_RELATIVE_CONTROL,
+		.index		= 10,
+		.size		= 3,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_AUTO_UPDATE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_PANTILT_ABSOLUTE_CONTROL,
+		.index		= 11,
+		.size		= 8,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_PANTILT_RELATIVE_CONTROL,
+		.index		= 12,
+		.size		= 4,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_AUTO_UPDATE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_ROLL_ABSOLUTE_CONTROL,
 		.index		= 13,
+		.size		= 2,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_ROLL_RELATIVE_CONTROL,
+		.index		= 14,
+		.size		= 2,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+				| UVC_CONTROL_AUTO_UPDATE,
+	},
+	{
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_FOCUS_AUTO_CONTROL,
+		.index		= 17,
 		.size		= 1,
 		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
 				| UVC_CONTROL_GET_DEF | UVC_CONTROL_RESTORE,
 	},
 	{
-		.entity		= UVC_GUID_UVC_PROCESSING,
-		.selector	= PU_WHITE_BALANCE_COMPONENT_CONTROL,
-		.index		= 7,
-		.size		= 4,
-		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_RANGE
+		.entity		= UVC_GUID_UVC_CAMERA,
+		.selector	= CT_PRIVACY_CONTROL,
+		.index		= 18,
+		.size		= 1,
+		.flags		= UVC_CONTROL_SET_CUR | UVC_CONTROL_GET_CUR
 				| UVC_CONTROL_RESTORE | UVC_CONTROL_AUTO_UPDATE,
 	},
 };
@@ -195,8 +321,8 @@ static struct uvc_menu_info power_line_frequency_controls[] = {
 };
 
 static struct uvc_menu_info exposure_auto_controls[] = {
-	{ 1, "Manual Mode" },
 	{ 2, "Auto Mode" },
+	{ 1, "Manual Mode" },
 	{ 4, "Shutter Priority Mode" },
 	{ 8, "Aperture Priority Mode" },
 };
@@ -585,13 +711,18 @@ int uvc_query_v4l2_ctrl(struct uvc_video_device *video,
 	struct uvc_control_mapping *mapping;
 	struct uvc_menu_info *menu;
 	unsigned int i;
-	__u8 data[8];
+	__u8 *data;
 	int ret;
 
 	ctrl = uvc_find_control(video, v4l2_ctrl->id, &mapping);
 	if (ctrl == NULL)
 		return -EINVAL;
 
+	data = kmalloc(ctrl->info->size, GFP_KERNEL);
+	if (data == NULL)
+		return -ENOMEM;
+
+	memset(v4l2_ctrl, 0, sizeof *v4l2_ctrl);
 	v4l2_ctrl->id = mapping->id;
 	v4l2_ctrl->type = mapping->v4l2_type;
 	strncpy(v4l2_ctrl->name, mapping->name, sizeof v4l2_ctrl->name);
@@ -603,12 +734,13 @@ int uvc_query_v4l2_ctrl(struct uvc_video_device *video,
 	if (ctrl->info->flags & UVC_CONTROL_GET_DEF) {
 		if ((ret = uvc_query_ctrl(video->dev, GET_DEF, ctrl->entity->id,
 				video->dev->intfnum, ctrl->info->selector,
-				&data, ctrl->info->size)) < 0)
-			return ret;
+				data, ctrl->info->size)) < 0)
+			goto out;
 		v4l2_ctrl->default_value = uvc_get_le_value(data, mapping);
 	}
 
-	if (mapping->v4l2_type == V4L2_CTRL_TYPE_MENU) {
+	switch (mapping->v4l2_type) {
+	case V4L2_CTRL_TYPE_MENU:
 		v4l2_ctrl->minimum = 0;
 		v4l2_ctrl->maximum = mapping->menu_count - 1;
 		v4l2_ctrl->step = 1;
@@ -621,32 +753,46 @@ int uvc_query_v4l2_ctrl(struct uvc_video_device *video,
 			}
 		}
 
-		return 0;
+		ret = 0;
+		goto out;
+
+	case V4L2_CTRL_TYPE_BOOLEAN:
+		v4l2_ctrl->minimum = 0;
+		v4l2_ctrl->maximum = 1;
+		v4l2_ctrl->step = 1;
+		ret = 0;
+		goto out;
+
+	default:
+		break;
 	}
 
 	if (ctrl->info->flags & UVC_CONTROL_GET_MIN) {
 		if ((ret = uvc_query_ctrl(video->dev, GET_MIN, ctrl->entity->id,
 				video->dev->intfnum, ctrl->info->selector,
-				&data, ctrl->info->size)) < 0)
-			return ret;
+				data, ctrl->info->size)) < 0)
+			goto out;
 		v4l2_ctrl->minimum = uvc_get_le_value(data, mapping);
 	}
 	if (ctrl->info->flags & UVC_CONTROL_GET_MAX) {
 		if ((ret = uvc_query_ctrl(video->dev, GET_MAX, ctrl->entity->id,
 				video->dev->intfnum, ctrl->info->selector,
-				&data, ctrl->info->size)) < 0)
-			return ret;
+				data, ctrl->info->size)) < 0)
+			goto out;
 		v4l2_ctrl->maximum = uvc_get_le_value(data, mapping);
 	}
 	if (ctrl->info->flags & UVC_CONTROL_GET_RES) {
 		if ((ret = uvc_query_ctrl(video->dev, GET_RES, ctrl->entity->id,
 				video->dev->intfnum, ctrl->info->selector,
-				&data, ctrl->info->size)) < 0)
-			return ret;
+				data, ctrl->info->size)) < 0)
+			goto out;
 		v4l2_ctrl->step = uvc_get_le_value(data, mapping);
 	}
 
-	return 0;
+	ret = 0;
+out:
+	kfree(data);
+	return ret;
 }
 
 
@@ -691,7 +837,17 @@ static int uvc_ctrl_commit_entity(struct uvc_device *dev,
 
 	for (i = 0; i < entity->ncontrols; ++i) {
 		ctrl = &entity->controls[i];
-		if (ctrl->info == NULL || !ctrl->dirty)
+		if (ctrl->info == NULL)
+			continue;
+
+		/* Reset the loaded flag for auto-update controls that were
+		 * marked as loaded in uvc_ctrl_get/uvc_ctrl_set to prevent
+		 * uvc_ctrl_get from using the cached value.
+		 */
+		if (ctrl->info->flags & UVC_CONTROL_AUTO_UPDATE)
+			ctrl->loaded = 0;
+
+		if (!ctrl->dirty)
 			continue;
 
 		if (!rollback)
@@ -707,9 +863,6 @@ static int uvc_ctrl_commit_entity(struct uvc_device *dev,
 			       uvc_ctrl_data(ctrl, UVC_CTRL_DATA_BACKUP),
 			       ctrl->info->size);
 
-		if ((ctrl->info->flags & UVC_CONTROL_GET_CUR) == 0)
-			ctrl->loaded = 0;
-
 		ctrl->dirty = 0;
 
 		if (ret < 0)
@@ -767,8 +920,7 @@ int uvc_ctrl_get(struct uvc_video_device *video,
 		if (ret < 0)
 			return ret;
 
-		if ((ctrl->info->flags & UVC_CONTROL_AUTO_UPDATE) == 0)
-			ctrl->loaded = 1;
+		ctrl->loaded = 1;
 	}
 
 	xctrl->value = uvc_get_le_value(
@@ -819,8 +971,7 @@ int uvc_ctrl_set(struct uvc_video_device *video,
 				return ret;
 		}
 
-		if ((ctrl->info->flags & UVC_CONTROL_AUTO_UPDATE) == 0)
-			ctrl->loaded = 1;
+		ctrl->loaded = 1;
 	}
 
 	if (!ctrl->dirty) {
@@ -1254,3 +1405,4 @@ void uvc_ctrl_init(void)
 	for (; mapping < mend; ++mapping)
 		uvc_ctrl_add_mapping(mapping);
 }
+
diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c
index 60ced589f898..d7ad060640bc 100644
--- a/drivers/media/video/uvc/uvc_driver.c
+++ b/drivers/media/video/uvc/uvc_driver.c
@@ -298,7 +298,8 @@ static int uvc_parse_format(struct uvc_device *dev,
 	switch (buffer[2]) {
 	case VS_FORMAT_UNCOMPRESSED:
 	case VS_FORMAT_FRAME_BASED:
-		if (buflen < 27) {
+		n = buffer[2] == VS_FORMAT_UNCOMPRESSED ? 27 : 28;
+		if (buflen < n) {
 			uvc_trace(UVC_TRACE_DESCR, "device %d videostreaming"
 			       "interface %d FORMAT error\n",
 			       dev->udev->devnum,
@@ -1457,9 +1458,7 @@ static int uvc_register_video(struct uvc_device *dev)
 	 * unregistered before the reference is released, so we don't need to
 	 * get another one.
 	 */
-	vdev->dev = &dev->intf->dev;
-	vdev->type = 0;
-	vdev->type2 = 0;
+	vdev->parent = &dev->intf->dev;
 	vdev->minor = -1;
 	vdev->fops = &uvc_fops;
 	vdev->release = video_device_release;
@@ -1632,13 +1631,16 @@ static void uvc_disconnect(struct usb_interface *intf)
 	 * reference to the uvc_device instance after uvc_v4l2_open() received
 	 * the pointer to the device (video_devdata) but before it got the
 	 * chance to increase the reference count (kref_get).
+	 *
+	 * Note that the reference can't be released with the lock held,
+	 * otherwise a AB-BA deadlock can occur with videodev_lock that
+	 * videodev acquires in videodev_open() and video_unregister_device().
 	 */
 	mutex_lock(&uvc_driver.open_mutex);
-
 	dev->state |= UVC_DEV_DISCONNECTED;
-	kref_put(&dev->kref, uvc_delete);
-
 	mutex_unlock(&uvc_driver.open_mutex);
+
+	kref_put(&dev->kref, uvc_delete);
 }
 
 static int uvc_suspend(struct usb_interface *intf, pm_message_t message)
@@ -1661,7 +1663,7 @@ static int uvc_suspend(struct usb_interface *intf, pm_message_t message)
 	return uvc_video_suspend(&dev->video);
 }
 
-static int uvc_resume(struct usb_interface *intf)
+static int __uvc_resume(struct usb_interface *intf, int reset)
 {
 	struct uvc_device *dev = usb_get_intfdata(intf);
 	int ret;
@@ -1670,7 +1672,7 @@ static int uvc_resume(struct usb_interface *intf)
 		intf->cur_altsetting->desc.bInterfaceNumber);
 
 	if (intf->cur_altsetting->desc.bInterfaceSubClass == SC_VIDEOCONTROL) {
-		if ((ret = uvc_ctrl_resume_device(dev)) < 0)
+		if (reset && (ret = uvc_ctrl_resume_device(dev)) < 0)
 			return ret;
 
 		return uvc_status_resume(dev);
@@ -1685,6 +1687,16 @@ static int uvc_resume(struct usb_interface *intf)
 	return uvc_video_resume(&dev->video);
 }
 
+static int uvc_resume(struct usb_interface *intf)
+{
+	return __uvc_resume(intf, 0);
+}
+
+static int uvc_reset_resume(struct usb_interface *intf)
+{
+	return __uvc_resume(intf, 1);
+}
+
 /* ------------------------------------------------------------------------
  * Driver initialization and cleanup
  */
@@ -1825,6 +1837,15 @@ static struct usb_device_id uvc_ids[] = {
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
+	/* Asus F9SG */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x174f,
+	  .idProduct		= 0x8a31,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_STREAM_NO_FID },
 	/* Syntek (Asus U3S) */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_INT_INFO,
@@ -1873,7 +1894,7 @@ static struct usb_device_id uvc_ids[] = {
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Packard Bell OEM Webcam */
+	/* Packard Bell OEM Webcam - Bison Electronics */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_INT_INFO,
 	  .idVendor		= 0x5986,
@@ -1882,7 +1903,7 @@ static struct usb_device_id uvc_ids[] = {
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Acer Crystal Eye webcam */
+	/* Acer Crystal Eye webcam - Bison Electronics */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_INT_INFO,
 	  .idVendor		= 0x5986,
@@ -1891,7 +1912,34 @@ static struct usb_device_id uvc_ids[] = {
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
-	/* Acer OrbiCam - Unknown vendor */
+	/* Compaq Presario B1200 - Bison Electronics */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x5986,
+	  .idProduct		= 0x0104,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
+	/* Acer Travelmate 7720 - Bison Electronics */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x5986,
+	  .idProduct		= 0x0105,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
+	/* Medion Akoya Mini E1210 - Bison Electronics */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x5986,
+	  .idProduct		= 0x0141,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
+	/* Acer OrbiCam - Bison Electronics */
 	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
 				| USB_DEVICE_ID_MATCH_INT_INFO,
 	  .idVendor		= 0x5986,
@@ -1900,6 +1948,42 @@ static struct usb_device_id uvc_ids[] = {
 	  .bInterfaceSubClass	= 1,
 	  .bInterfaceProtocol	= 0,
 	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
+	/*  Fujitsu Amilo SI2636 - Bison Electronics */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x5986,
+	  .idProduct		= 0x0202,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
+	/*  Advent 4211 - Bison Electronics */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x5986,
+	  .idProduct		= 0x0203,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
+	/* Bison Electronics */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x5986,
+	  .idProduct		= 0x0300,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
+	/* Clevo M570TU - Bison Electronics */
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE
+				| USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor		= 0x5986,
+	  .idProduct		= 0x0303,
+	  .bInterfaceClass	= USB_CLASS_VIDEO,
+	  .bInterfaceSubClass	= 1,
+	  .bInterfaceProtocol	= 0,
+	  .driver_info		= UVC_QUIRK_PROBE_MINMAX },
 	/* Generic USB Video Class */
 	{ USB_INTERFACE_INFO(USB_CLASS_VIDEO, 1, 0) },
 	{}
@@ -1914,6 +1998,7 @@ struct uvc_driver uvc_driver = {
 		.disconnect	= uvc_disconnect,
 		.suspend	= uvc_suspend,
 		.resume		= uvc_resume,
+		.reset_resume	= uvc_reset_resume,
 		.id_table	= uvc_ids,
 		.supports_autosuspend = 1,
 	},
@@ -1953,3 +2038,4 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRIVER_VERSION);
+
diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c
index 0923f0e3b3d4..5646a6a32939 100644
--- a/drivers/media/video/uvc/uvc_queue.c
+++ b/drivers/media/video/uvc/uvc_queue.c
@@ -13,6 +13,7 @@
 
 #include <linux/kernel.h>
 #include <linux/version.h>
+#include <linux/mm.h>
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/usb.h>
@@ -475,3 +476,4 @@ struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
 	wake_up(&buf->wait);
 	return nextbuf;
 }
+
diff --git a/drivers/media/video/uvc/uvc_status.c b/drivers/media/video/uvc/uvc_status.c
index be9084e5eace..5d60b264d59a 100644
--- a/drivers/media/video/uvc/uvc_status.c
+++ b/drivers/media/video/uvc/uvc_status.c
@@ -22,6 +22,7 @@
 /* --------------------------------------------------------------------------
  * Input device
  */
+#ifdef CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV
 static int uvc_input_init(struct uvc_device *dev)
 {
 	struct usb_device *udev = dev->udev;
@@ -67,6 +68,19 @@ static void uvc_input_cleanup(struct uvc_device *dev)
 		input_unregister_device(dev->input);
 }
 
+static void uvc_input_report_key(struct uvc_device *dev, unsigned int code,
+	int value)
+{
+	if (dev->input)
+		input_report_key(dev->input, code, value);
+}
+
+#else
+#define uvc_input_init(dev)
+#define uvc_input_cleanup(dev)
+#define uvc_input_report_key(dev, code, value)
+#endif /* CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV */
+
 /* --------------------------------------------------------------------------
  * Status interrupt endpoint
  */
@@ -83,8 +97,7 @@ static void uvc_event_streaming(struct uvc_device *dev, __u8 *data, int len)
 			return;
 		uvc_trace(UVC_TRACE_STATUS, "Button (intf %u) %s len %d\n",
 			data[1], data[3] ? "pressed" : "released", len);
-		if (dev->input)
-			input_report_key(dev->input, BTN_0, data[3]);
+		uvc_input_report_key(dev, BTN_0, data[3]);
 	} else {
 		uvc_trace(UVC_TRACE_STATUS, "Stream %u error event %02x %02x "
 			"len %d.\n", data[1], data[2], data[3], len);
@@ -164,9 +177,15 @@ int uvc_status_init(struct uvc_device *dev)
 
 	uvc_input_init(dev);
 
+	dev->status = kzalloc(UVC_MAX_STATUS_SIZE, GFP_KERNEL);
+	if (dev->status == NULL)
+		return -ENOMEM;
+
 	dev->int_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (dev->int_urb == NULL)
+	if (dev->int_urb == NULL) {
+		kfree(dev->status);
 		return -ENOMEM;
+	}
 
 	pipe = usb_rcvintpipe(dev->udev, ep->desc.bEndpointAddress);
 
@@ -179,7 +198,7 @@ int uvc_status_init(struct uvc_device *dev)
 		interval = fls(interval) - 1;
 
 	usb_fill_int_urb(dev->int_urb, dev->udev, pipe,
-		dev->status, sizeof dev->status, uvc_status_complete,
+		dev->status, UVC_MAX_STATUS_SIZE, uvc_status_complete,
 		dev, interval);
 
 	return usb_submit_urb(dev->int_urb, GFP_KERNEL);
@@ -189,6 +208,7 @@ void uvc_status_cleanup(struct uvc_device *dev)
 {
 	usb_kill_urb(dev->int_urb);
 	usb_free_urb(dev->int_urb);
+	kfree(dev->status);
 	uvc_input_cleanup(dev);
 }
 
@@ -203,5 +223,6 @@ int uvc_status_resume(struct uvc_device *dev)
 	if (dev->int_urb == NULL)
 		return 0;
 
-	return usb_submit_urb(dev->int_urb, GFP_KERNEL);
+	return usb_submit_urb(dev->int_urb, GFP_NOIO);
 }
+
diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c
index 2e0a66575bb4..758dfefaba8d 100644
--- a/drivers/media/video/uvc/uvc_v4l2.c
+++ b/drivers/media/video/uvc/uvc_v4l2.c
@@ -23,6 +23,7 @@
 #include <asm/atomic.h>
 
 #include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
 
 #include "uvcvideo.h"
 
@@ -399,15 +400,13 @@ static int uvc_has_privileges(struct uvc_fh *handle)
 
 static int uvc_v4l2_open(struct inode *inode, struct file *file)
 {
-	struct video_device *vdev;
 	struct uvc_video_device *video;
 	struct uvc_fh *handle;
 	int ret = 0;
 
 	uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_open\n");
 	mutex_lock(&uvc_driver.open_mutex);
-	vdev = video_devdata(file);
-	video = video_get_drvdata(vdev);
+	video = video_drvdata(file);
 
 	if (video->dev->state & UVC_DEV_DISCONNECTED) {
 		ret = -ENODEV;
@@ -439,8 +438,7 @@ done:
 
 static int uvc_v4l2_release(struct inode *inode, struct file *file)
 {
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_video_device *video = video_get_drvdata(vdev);
+	struct uvc_video_device *video = video_drvdata(file);
 	struct uvc_fh *handle = (struct uvc_fh *)file->private_data;
 
 	uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_release\n");
@@ -466,7 +464,7 @@ static int uvc_v4l2_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static int uvc_v4l2_do_ioctl(struct inode *inode, struct file *file,
+static int __uvc_v4l2_do_ioctl(struct file *file,
 		     unsigned int cmd, void *arg)
 {
 	struct video_device *vdev = video_devdata(file);
@@ -844,10 +842,6 @@ static int uvc_v4l2_do_ioctl(struct inode *inode, struct file *file,
 		if (ret < 0)
 			return ret;
 
-		if (!(video->streaming->cur_format->flags &
-		    UVC_FMT_FLAG_COMPRESSED))
-			video->queue.flags |= UVC_QUEUE_DROP_INCOMPLETE;
-
 		rb->count = ret;
 		ret = 0;
 		break;
@@ -984,8 +978,8 @@ static int uvc_v4l2_do_ioctl(struct inode *inode, struct file *file,
 		return uvc_xu_ctrl_query(video, arg, 1);
 
 	default:
-		if ((ret = v4l_compat_translate_ioctl(inode, file, cmd, arg,
-			uvc_v4l2_do_ioctl)) == -ENOIOCTLCMD)
+		if ((ret = v4l_compat_translate_ioctl(file, cmd, arg,
+			__uvc_v4l2_do_ioctl)) == -ENOIOCTLCMD)
 			uvc_trace(UVC_TRACE_IOCTL, "Unknown ioctl 0x%08x\n",
 				  cmd);
 		return ret;
@@ -994,6 +988,12 @@ static int uvc_v4l2_do_ioctl(struct inode *inode, struct file *file,
 	return ret;
 }
 
+static int uvc_v4l2_do_ioctl(struct inode *inode, struct file *file,
+			      unsigned int cmd, void *arg)
+{
+	return __uvc_v4l2_do_ioctl(file, cmd, arg);
+}
+
 static int uvc_v4l2_ioctl(struct inode *inode, struct file *file,
 		     unsigned int cmd, unsigned long arg)
 {
@@ -1030,9 +1030,8 @@ static struct vm_operations_struct uvc_vm_ops = {
 
 static int uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_video_device *video = video_get_drvdata(vdev);
-	struct uvc_buffer *buffer;
+	struct uvc_video_device *video = video_drvdata(file);
+	struct uvc_buffer *uninitialized_var(buffer);
 	struct page *page;
 	unsigned long addr, start, size;
 	unsigned int i;
@@ -1084,8 +1083,7 @@ done:
 
 static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait)
 {
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_video_device *video = video_get_drvdata(vdev);
+	struct uvc_video_device *video = video_drvdata(file);
 
 	uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_poll\n");
 
@@ -1103,3 +1101,4 @@ struct file_operations uvc_fops = {
 	.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 6faf1fb21614..b7bb23820d80 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -90,17 +90,20 @@ static void uvc_fixup_buffer_size(struct uvc_video_device *video,
 static int uvc_get_video_ctrl(struct uvc_video_device *video,
 	struct uvc_streaming_control *ctrl, int probe, __u8 query)
 {
-	__u8 data[34];
-	__u8 size;
+	__u8 *data;
+	__u16 size;
 	int ret;
 
 	size = video->dev->uvc_version >= 0x0110 ? 34 : 26;
+	data = kmalloc(size, GFP_KERNEL);
+	if (data == NULL)
+		return -ENOMEM;
+
 	ret = __uvc_query_ctrl(video->dev, query, 0, video->streaming->intfnum,
-		probe ? VS_PROBE_CONTROL : VS_COMMIT_CONTROL, &data, size,
+		probe ? VS_PROBE_CONTROL : VS_COMMIT_CONTROL, data, size,
 		UVC_CTRL_STREAMING_TIMEOUT);
-
 	if (ret < 0)
-		return ret;
+		goto out;
 
 	ctrl->bmHint = le16_to_cpup((__le16 *)&data[0]);
 	ctrl->bFormatIndex = data[2];
@@ -136,17 +139,22 @@ static int uvc_get_video_ctrl(struct uvc_video_device *video,
 	 */
 	uvc_fixup_buffer_size(video, ctrl);
 
-	return 0;
+out:
+	kfree(data);
+	return ret;
 }
 
 int uvc_set_video_ctrl(struct uvc_video_device *video,
 	struct uvc_streaming_control *ctrl, int probe)
 {
-	__u8 data[34];
-	__u8 size;
+	__u8 *data;
+	__u16 size;
+	int ret;
 
 	size = video->dev->uvc_version >= 0x0110 ? 34 : 26;
-	memset(data, 0, sizeof data);
+	data = kzalloc(size, GFP_KERNEL);
+	if (data == NULL)
+		return -ENOMEM;
 
 	*(__le16 *)&data[0] = cpu_to_le16(ctrl->bmHint);
 	data[2] = ctrl->bFormatIndex;
@@ -174,10 +182,13 @@ int uvc_set_video_ctrl(struct uvc_video_device *video,
 		data[33] = ctrl->bMaxVersion;
 	}
 
-	return __uvc_query_ctrl(video->dev, SET_CUR, 0,
+	ret = __uvc_query_ctrl(video->dev, SET_CUR, 0,
 		video->streaming->intfnum,
-		probe ? VS_PROBE_CONTROL : VS_COMMIT_CONTROL, &data, size,
+		probe ? VS_PROBE_CONTROL : VS_COMMIT_CONTROL, data, size,
 		UVC_CTRL_STREAMING_TIMEOUT);
+
+	kfree(data);
+	return ret;
 }
 
 int uvc_probe_video(struct uvc_video_device *video,
@@ -444,7 +455,8 @@ static void uvc_video_decode_isoc(struct urb *urb,
 			urb->iso_frame_desc[i].actual_length - ret);
 
 		/* Process the header again. */
-		uvc_video_decode_end(video, buf, mem, ret);
+		uvc_video_decode_end(video, buf, mem,
+			urb->iso_frame_desc[i].actual_length);
 
 		if (buf->state == UVC_BUF_STATE_DONE ||
 		    buf->state == UVC_BUF_STATE_ERROR)
@@ -501,7 +513,7 @@ static void uvc_video_decode_bulk(struct urb *urb,
 	    video->bulk.payload_size >= video->bulk.max_payload_size) {
 		if (!video->bulk.skip_payload && buf != NULL) {
 			uvc_video_decode_end(video, buf, video->bulk.header,
-				video->bulk.header_size);
+				video->bulk.payload_size);
 			if (buf->state == UVC_BUF_STATE_DONE ||
 			    buf->state == UVC_BUF_STATE_ERROR)
 				buf = uvc_queue_next_buffer(&video->queue, buf);
@@ -554,9 +566,56 @@ static void uvc_video_complete(struct urb *urb)
 }
 
 /*
+ * Free transfer buffers.
+ */
+static void uvc_free_urb_buffers(struct uvc_video_device *video)
+{
+	unsigned int i;
+
+	for (i = 0; i < UVC_URBS; ++i) {
+		if (video->urb_buffer[i]) {
+			usb_buffer_free(video->dev->udev, video->urb_size,
+				video->urb_buffer[i], video->urb_dma[i]);
+			video->urb_buffer[i] = NULL;
+		}
+	}
+
+	video->urb_size = 0;
+}
+
+/*
+ * Allocate transfer buffers. This function can be called with buffers
+ * already allocated when resuming from suspend, in which case it will
+ * return without touching the buffers.
+ *
+ * Return 0 on success or -ENOMEM when out of memory.
+ */
+static int uvc_alloc_urb_buffers(struct uvc_video_device *video,
+	unsigned int size)
+{
+	unsigned int i;
+
+	/* Buffers are already allocated, bail out. */
+	if (video->urb_size)
+		return 0;
+
+	for (i = 0; i < UVC_URBS; ++i) {
+		video->urb_buffer[i] = usb_buffer_alloc(video->dev->udev,
+			size, GFP_KERNEL, &video->urb_dma[i]);
+		if (video->urb_buffer[i] == NULL) {
+			uvc_free_urb_buffers(video);
+			return -ENOMEM;
+		}
+	}
+
+	video->urb_size = size;
+	return 0;
+}
+
+/*
  * Uninitialize isochronous/bulk URBs and free transfer buffers.
  */
-static void uvc_uninit_video(struct uvc_video_device *video)
+static void uvc_uninit_video(struct uvc_video_device *video, int free_buffers)
 {
 	struct urb *urb;
 	unsigned int i;
@@ -566,19 +625,12 @@ static void uvc_uninit_video(struct uvc_video_device *video)
 			continue;
 
 		usb_kill_urb(urb);
-		/* urb->transfer_buffer_length is not touched by USB core, so
-		 * we can use it here as the buffer length.
-		 */
-		if (video->urb_buffer[i]) {
-			usb_buffer_free(video->dev->udev,
-				urb->transfer_buffer_length,
-				video->urb_buffer[i], urb->transfer_dma);
-			video->urb_buffer[i] = NULL;
-		}
-
 		usb_free_urb(urb);
 		video->urb[i] = NULL;
 	}
+
+	if (free_buffers)
+		uvc_free_urb_buffers(video);
 }
 
 /*
@@ -586,7 +638,7 @@ static void uvc_uninit_video(struct uvc_video_device *video)
  * is given by the endpoint.
  */
 static int uvc_init_video_isoc(struct uvc_video_device *video,
-	struct usb_host_endpoint *ep)
+	struct usb_host_endpoint *ep, gfp_t gfp_flags)
 {
 	struct urb *urb;
 	unsigned int npackets, i, j;
@@ -604,24 +656,19 @@ static int uvc_init_video_isoc(struct uvc_video_device *video,
 	if (size > UVC_MAX_FRAME_SIZE)
 		return -EINVAL;
 
-	npackets = (size + psize - 1) / psize;
+	npackets = DIV_ROUND_UP(size, psize);
 	if (npackets > UVC_MAX_ISO_PACKETS)
 		npackets = UVC_MAX_ISO_PACKETS;
 
 	size = npackets * psize;
 
+	if (uvc_alloc_urb_buffers(video, size) < 0)
+		return -ENOMEM;
+
 	for (i = 0; i < UVC_URBS; ++i) {
-		urb = usb_alloc_urb(npackets, GFP_KERNEL);
+		urb = usb_alloc_urb(npackets, gfp_flags);
 		if (urb == NULL) {
-			uvc_uninit_video(video);
-			return -ENOMEM;
-		}
-
-		video->urb_buffer[i] = usb_buffer_alloc(video->dev->udev,
-			size, GFP_KERNEL, &urb->transfer_dma);
-		if (video->urb_buffer[i] == NULL) {
-			usb_free_urb(urb);
-			uvc_uninit_video(video);
+			uvc_uninit_video(video, 1);
 			return -ENOMEM;
 		}
 
@@ -632,6 +679,7 @@ static int uvc_init_video_isoc(struct uvc_video_device *video,
 		urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP;
 		urb->interval = ep->desc.bInterval;
 		urb->transfer_buffer = video->urb_buffer[i];
+		urb->transfer_dma = video->urb_dma[i];
 		urb->complete = uvc_video_complete;
 		urb->number_of_packets = npackets;
 		urb->transfer_buffer_length = size;
@@ -652,7 +700,7 @@ static int uvc_init_video_isoc(struct uvc_video_device *video,
  * given by the endpoint.
  */
 static int uvc_init_video_bulk(struct uvc_video_device *video,
-	struct usb_host_endpoint *ep)
+	struct usb_host_endpoint *ep, gfp_t gfp_flags)
 {
 	struct urb *urb;
 	unsigned int pipe, i;
@@ -671,20 +719,15 @@ static int uvc_init_video_bulk(struct uvc_video_device *video,
 	if (size > psize * UVC_MAX_ISO_PACKETS)
 		size = psize * UVC_MAX_ISO_PACKETS;
 
+	if (uvc_alloc_urb_buffers(video, size) < 0)
+		return -ENOMEM;
+
 	pipe = usb_rcvbulkpipe(video->dev->udev, ep->desc.bEndpointAddress);
 
 	for (i = 0; i < UVC_URBS; ++i) {
-		urb = usb_alloc_urb(0, GFP_KERNEL);
+		urb = usb_alloc_urb(0, gfp_flags);
 		if (urb == NULL) {
-			uvc_uninit_video(video);
-			return -ENOMEM;
-		}
-
-		video->urb_buffer[i] = usb_buffer_alloc(video->dev->udev,
-			size, GFP_KERNEL, &urb->transfer_dma);
-		if (video->urb_buffer[i] == NULL) {
-			usb_free_urb(urb);
-			uvc_uninit_video(video);
+			uvc_uninit_video(video, 1);
 			return -ENOMEM;
 		}
 
@@ -692,6 +735,7 @@ static int uvc_init_video_bulk(struct uvc_video_device *video,
 			video->urb_buffer[i], size, uvc_video_complete,
 			video);
 		urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
+		urb->transfer_dma = video->urb_dma[i];
 
 		video->urb[i] = urb;
 	}
@@ -702,7 +746,7 @@ static int uvc_init_video_bulk(struct uvc_video_device *video,
 /*
  * Initialize isochronous/bulk URBs and allocate transfer buffers.
  */
-static int uvc_init_video(struct uvc_video_device *video)
+static int uvc_init_video(struct uvc_video_device *video, gfp_t gfp_flags)
 {
 	struct usb_interface *intf = video->streaming->intf;
 	struct usb_host_interface *alts;
@@ -747,7 +791,7 @@ static int uvc_init_video(struct uvc_video_device *video)
 		if ((ret = usb_set_interface(video->dev->udev, intfnum, i)) < 0)
 			return ret;
 
-		ret = uvc_init_video_isoc(video, ep);
+		ret = uvc_init_video_isoc(video, ep, gfp_flags);
 	} else {
 		/* Bulk endpoint, proceed to URB initialization. */
 		ep = uvc_find_endpoint(&intf->altsetting[0],
@@ -755,7 +799,7 @@ static int uvc_init_video(struct uvc_video_device *video)
 		if (ep == NULL)
 			return -EIO;
 
-		ret = uvc_init_video_bulk(video, ep);
+		ret = uvc_init_video_bulk(video, ep, gfp_flags);
 	}
 
 	if (ret < 0)
@@ -763,10 +807,10 @@ static int uvc_init_video(struct uvc_video_device *video)
 
 	/* Submit the URBs. */
 	for (i = 0; i < UVC_URBS; ++i) {
-		if ((ret = usb_submit_urb(video->urb[i], GFP_KERNEL)) < 0) {
+		if ((ret = usb_submit_urb(video->urb[i], gfp_flags)) < 0) {
 			uvc_printk(KERN_ERR, "Failed to submit URB %u "
 					"(%d).\n", i, ret);
-			uvc_uninit_video(video);
+			uvc_uninit_video(video, 1);
 			return ret;
 		}
 	}
@@ -791,7 +835,7 @@ int uvc_video_suspend(struct uvc_video_device *video)
 		return 0;
 
 	video->frozen = 1;
-	uvc_uninit_video(video);
+	uvc_uninit_video(video, 0);
 	usb_set_interface(video->dev->udev, video->streaming->intfnum, 0);
 	return 0;
 }
@@ -818,7 +862,7 @@ int uvc_video_resume(struct uvc_video_device *video)
 	if (!uvc_queue_streaming(&video->queue))
 		return 0;
 
-	if ((ret = uvc_init_video(video)) < 0)
+	if ((ret = uvc_init_video(video, GFP_NOIO)) < 0)
 		uvc_queue_enable(&video->queue, 0);
 
 	return ret;
@@ -920,15 +964,21 @@ int uvc_video_enable(struct uvc_video_device *video, int enable)
 	int ret;
 
 	if (!enable) {
-		uvc_uninit_video(video);
+		uvc_uninit_video(video, 1);
 		usb_set_interface(video->dev->udev,
 			video->streaming->intfnum, 0);
 		uvc_queue_enable(&video->queue, 0);
 		return 0;
 	}
 
+	if (video->streaming->cur_format->flags & UVC_FMT_FLAG_COMPRESSED)
+		video->queue.flags &= ~UVC_QUEUE_DROP_INCOMPLETE;
+	else
+		video->queue.flags |= UVC_QUEUE_DROP_INCOMPLETE;
+
 	if ((ret = uvc_queue_enable(&video->queue, 1)) < 0)
 		return ret;
 
-	return uvc_init_video(video);
+	return uvc_init_video(video, GFP_KERNEL);
 }
+
diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h
index a995a780db1c..9a6bc1aafb16 100644
--- a/drivers/media/video/uvc/uvcvideo.h
+++ b/drivers/media/video/uvc/uvcvideo.h
@@ -303,6 +303,8 @@ struct uvc_xu_control {
 #define UVC_MAX_FRAME_SIZE	(16*1024*1024)
 /* Maximum number of video buffers. */
 #define UVC_MAX_VIDEO_BUFFERS	32
+/* Maximum status buffer size in bytes of interrupt URB. */
+#define UVC_MAX_STATUS_SIZE	16
 
 #define UVC_CTRL_CONTROL_TIMEOUT	300
 #define UVC_CTRL_STREAMING_TIMEOUT	1000
@@ -602,6 +604,8 @@ struct uvc_video_device {
 
 	struct urb *urb[UVC_URBS];
 	char *urb_buffer[UVC_URBS];
+	dma_addr_t urb_dma[UVC_URBS];
+	unsigned int urb_size;
 
 	__u8 last_fid;
 };
@@ -632,7 +636,7 @@ struct uvc_device {
 	/* Status Interrupt Endpoint */
 	struct usb_host_endpoint *int_ep;
 	struct urb *int_urb;
-	__u8 status[16];
+	__u8 *status;
 	struct input_dev *input;
 
 	/* Video Streaming interfaces */
@@ -794,3 +798,4 @@ void uvc_video_decode_isight(struct urb *urb, struct uvc_video_device *video,
 #endif /* __KERNEL__ */
 
 #endif
+