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[media] omap3isp: queue: Fix omap3isp_video_queue_dqbuf() description comment

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Signed-off-by: Michael Jones <michael.jones@matrix-vision.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Michael Jones 2012-06-27 12:06:57 -03:00 committed by Mauro Carvalho Chehab
parent 13eaaa7f2f
commit b1e71f31cb
1 changed files with 7 additions and 6 deletions
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13
drivers/media/video/omap3isp/ispqueue.c
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@ -908,13 +908,14 @@ done:
*
* This function is intended to be used as a VIDIOC_DQBUF ioctl handler.
*
* The v4l2_buffer structure passed from userspace is first sanity tested. If
* sane, the buffer is then processed and added to the main queue and, if the
* queue is streaming, to the IRQ queue.
* Wait until a buffer is ready to be dequeued, remove it from the queue and
* copy its information to the v4l2_buffer structure.
*
* Before being enqueued, USERPTR buffers are checked for address changes. If
* the buffer has a different userspace address, the old memory area is unlocked
* and the new memory area is locked.
* If the nonblocking argument is not zero and no buffer is ready, return
* -EAGAIN immediately instead of waiting.
*
* If no buffer has been enqueued, or if the requested buffer type doesn't match
* the queue type, return -EINVAL.
*/
int omap3isp_video_queue_dqbuf(struct isp_video_queue *queue,
struct v4l2_buffer *vbuf, int nonblocking)