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[media] v4l: vsp1: Release buffers at stream stop

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videobuf2 expects no buffer to be owned by the driver when the
stop_stream queue operation returns. As the vsp1 driver fails to do so,
a warning is generated at stream top time.

Fix this by releasing all buffers queued on the IRQ queue in the
stop_stream operation handler and marking them as erroneous.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Laurent Pinchart 2014-06-23 16:57:22 -03:00 committed by Mauro Carvalho Chehab
parent aaa48cbb09
commit 9df04e9d9a
1 changed files with 3 additions and 0 deletions
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3
drivers/media/platform/vsp1/vsp1_video.c
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@ -742,6 +742,7 @@ static void vsp1_video_stop_streaming(struct vb2_queue *vq)
{
struct vsp1_video *video = vb2_get_drv_priv(vq);
struct vsp1_pipeline *pipe = to_vsp1_pipeline(&video->video.entity);
struct vsp1_video_buffer *buffer;
unsigned long flags;
int ret;
@ -759,6 +760,8 @@ static void vsp1_video_stop_streaming(struct vb2_queue *vq)
/* Remove all buffers from the IRQ queue. */
spin_lock_irqsave(&video->irqlock, flags);
list_for_each_entry(buffer, &video->irqqueue, queue)
vb2_buffer_done(&buffer->buf, VB2_BUF_STATE_ERROR);
INIT_LIST_HEAD(&video->irqqueue);
spin_unlock_irqrestore(&video->irqlock, flags);
}