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usb: gadget: function: uvc: conditionally dequeue

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We shouldn't try to dequeue a NULL pointer.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2014-09-29 09:19:59 -05:00
parent 7a60855972
commit d7577b3892
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/gadget/function/uvc_video.c
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@ -352,7 +352,8 @@ int uvcg_video_enable(struct uvc_video *video, int enable)
if (!enable) { if (!enable) {
for (i = 0; i < UVC_NUM_REQUESTS; ++i) for (i = 0; i < UVC_NUM_REQUESTS; ++i)
usb_ep_dequeue(video->ep, video->req[i]); if (video->req[i])
usb_ep_dequeue(video->ep, video->req[i]);
uvc_video_free_requests(video); uvc_video_free_requests(video);
uvcg_queue_enable(&video->queue, 0); uvcg_queue_enable(&video->queue, 0);