usb: gadget: function: uvc: conditionally dequeue

We shouldn't try to dequeue a NULL pointer.

Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c
index c3e1f27dbbefd2da1763766ab4cdbabc09ce4fb3..9cb86bc1a9a5444b4ed7895489c2b0c5860bac37 100644 (file)
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -352,7 +352,8 @@ int uvcg_video_enable(struct uvc_video *video, int enable)
 
        if (!enable) {
                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);
                uvcg_queue_enable(&video->queue, 0);