commit: 8ca2c80b170c47eeb55f0c2a0f2b8edf85f35d49
From: Sjoerd Simons <[email protected]>
Date: Tue, 24 May 2011 12:22:03 -0300
Subject: [PATCH] [media] uvcvideo: Remove buffers from the queues when
freeing
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 <[email protected]>
Acked-by: Laurent Pinchart <[email protected]>
Cc: [email protected]
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
---
drivers/media/video/uvc/uvc_queue.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/uvc/uvc_queue.c
b/drivers/media/video/uvc/uvc_queue.c
index 109a063..f90ce9f 100644
--- a/drivers/media/video/uvc/uvc_queue.c
+++ b/drivers/media/video/uvc/uvc_queue.c
@@ -104,6 +104,8 @@ static 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;
}
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