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authorMing Lei <tom.leiming@gmail.com>2009-04-17 20:50:30 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-05-09 18:50:40 -0300
commitcb1287a82281ab3ddb0768250a46603977075b91 (patch)
tree73d647ccfa6c29b5bc95f1574a80e6c3ba22a29c
parent091bf7624d1c90cec9e578a18529f615213ff847 (diff)
V4L/DVB (11575): uvcvideo: fix uvc resume failed
Now urb buffers is not freed before suspend, so uvc_alloc_urb_buffers should return packet counts allocated originally during uvc resume, instead of zero. This version uses round down to return packet counts on Linus' suggestions, or else may lead to buffer destructed if packet size is changed before calling uvc_alloc_urb_buffers() in this kind of case. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/video/uvc/uvc_video.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index a95e17329c5..6ce974d7362 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -742,7 +742,7 @@ static int uvc_alloc_urb_buffers(struct uvc_video_device *video,
/* Buffers are already allocated, bail out. */
if (video->urb_size)
- return 0;
+ return video->urb_size / psize;
/* Compute the number of packets. Bulk endpoints might transfer UVC
* payloads accross multiple URBs.