From 611fc8078efc615210716abdb7410530ed6616e9 Mon Sep 17 00:00:00 2001 From: Sjoerd Simons Date: Tue, 24 May 2011 12:22:03 -0300 Subject: [PATCH] uvcvideo: Remove buffers from the queues when freeing commit 8ca2c80b170c47eeb55f0c2a0f2b8edf85f35d49 upstream. When freeing memory for the video buffers also remove them from the irq & main queues. This fixes an oops when doing the following: open ("/dev/video", ..) VIDIOC_REQBUFS VIDIOC_QBUF VIDIOC_REQBUFS close () As the second VIDIOC_REQBUFS will cause the list entries of the buffers to be cleared while they still hang around on the main and irc queues Signed-off-by: Sjoerd Simons Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman Signed-off-by: Andi Kleen --- drivers/media/video/uvc/uvc_queue.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c index 133c78d113a..8416dd80819 100644 --- a/drivers/media/video/uvc/uvc_queue.c +++ b/drivers/media/video/uvc/uvc_queue.c @@ -165,6 +165,8 @@ int uvc_free_buffers(struct uvc_video_queue *queue) } if (queue->count) { + uvc_queue_cancel(queue, 0); + INIT_LIST_HEAD(&queue->mainqueue); vfree(queue->mem); queue->count = 0; } -- 2.11.4.GIT