diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2013-04-29 22:18:01 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-08-09 16:40:54 +0200 |
| commit | ebe864a6cb8e087ede047fa1fa6b6d06fcb9a9e4 (patch) | |
| tree | 2b31ce7fc5db0b88d22c8ff1b1790e4efd002c4a /drivers/usb/gadget/uvc_queue.c | |
| parent | usb: musb dma: add cppi41 dma driver (diff) | |
| download | linux-ebe864a6cb8e087ede047fa1fa6b6d06fcb9a9e4.tar.xz linux-ebe864a6cb8e087ede047fa1fa6b6d06fcb9a9e4.zip | |
usb: gadget: uvc: Fix error handling in uvc_queue_buffer()
The conversion to videobuf2 failed to check the return value of
vb2_qbuf(). Fix it.
Cc: stable@vger.kernel.org
Reported-by: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-By: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/uvc_queue.c')
| -rw-r--r-- | drivers/usb/gadget/uvc_queue.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index e6170478ea9f..0bb5d50075de 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -193,12 +193,16 @@ static int uvc_queue_buffer(struct uvc_video_queue *queue, mutex_lock(&queue->mutex); ret = vb2_qbuf(&queue->queue, buf); + if (ret < 0) + goto done; + spin_lock_irqsave(&queue->irqlock, flags); ret = (queue->flags & UVC_QUEUE_PAUSED) != 0; queue->flags &= ~UVC_QUEUE_PAUSED; spin_unlock_irqrestore(&queue->irqlock, flags); - mutex_unlock(&queue->mutex); +done: + mutex_unlock(&queue->mutex); return ret; } |