From ebe864a6cb8e087ede047fa1fa6b6d06fcb9a9e4 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 29 Apr 2013 22:18:01 +0200 Subject: [PATCH] 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 Signed-off-by: Laurent Pinchart Tested-By: Michael Grzeschik Signed-off-by: Felipe Balbi --- drivers/usb/gadget/uvc_queue.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) 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; } -- 2.39.5