diff options
| author | Laurent Pinchart <laurent.pinchart@skynet.be> | 2009-06-04 09:26:39 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 19:07:30 -0300 |
| commit | 23ff6043add670713bbf2f6ee5d520459cfdfae9 (patch) | |
| tree | b275b1baf5e1f9940b27e388784ed999ab1c6e93 /drivers/media/video/uvc/uvcvideo.h | |
| parent | d732c44c1a4b54e3c59ad92069bc2fd848aca5f3 (diff) | |
V4L/DVB (11945): uvcvideo: Don't accept to change the format when buffers are allocated.
Setting a new frame format or size will likely change the buffer size required
to store a complete video frame. To avoid a buffer overflow, don't allow
VIDIOC_S_FMT calls when video buffers are already allocated.
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc/uvcvideo.h')
| -rw-r--r-- | drivers/media/video/uvc/uvcvideo.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h index f435e8eeccd..3c78d3c1e4c 100644 --- a/drivers/media/video/uvc/uvcvideo.h +++ b/drivers/media/video/uvc/uvcvideo.h @@ -747,6 +747,7 @@ extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf); extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue, struct file *file, poll_table *wait); +extern int uvc_queue_allocated(struct uvc_video_queue *queue); static inline int uvc_queue_streaming(struct uvc_video_queue *queue) { return queue->flags & UVC_QUEUE_STREAMING; |