diff options
Diffstat (limited to 'drivers/media/video/uvc/uvc_driver.c')
| -rw-r--r-- | drivers/media/video/uvc/uvc_driver.c | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/drivers/media/video/uvc/uvc_driver.c b/drivers/media/video/uvc/uvc_driver.c index 60ced589f898..b3c4d75e8490 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) @@ -1825,6 +1827,15 @@ 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, @@ -1891,6 +1902,15 @@ static struct usb_device_id uvc_ids[] = { .bInterfaceSubClass = 1, .bInterfaceProtocol = 0, .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Medion Akoya Mini E1210 */ + { .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 - Unknown vendor */ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO, @@ -1953,3 +1973,4 @@ MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); MODULE_VERSION(DRIVER_VERSION); + |