Hello,
On Monday, March 21, 2011 12:31 AM Pawel Osciak wrote:
> Fix vb2 not handling return value from start_streaming() callback.
>
> Signed-off-by: Pawel Osciak <pa...@osciak.com>
Acked-by: Marek Szyprowski <m.szyprow...@samsung.com>
> ---
> drivers/media/video/videobuf2-core.c | 11 ++++++++---
> 1 files changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/media/video/videobuf2-core.c
> b/drivers/media/video/videobuf2-core.c
> index 8c6f04b..6698c77 100644
> --- a/drivers/media/video/videobuf2-core.c
> +++ b/drivers/media/video/videobuf2-core.c
> @@ -1111,6 +1111,7 @@ EXPORT_SYMBOL_GPL(vb2_dqbuf);
> int vb2_streamon(struct vb2_queue *q, enum v4l2_buf_type type)
> {
> struct vb2_buffer *vb;
> + int ret;
>
> if (q->fileio) {
> dprintk(1, "streamon: file io in progress\n");
> @@ -1138,12 +1139,16 @@ int vb2_streamon(struct vb2_queue *q, enum
> v4l2_buf_type type)
> }
> }
>
> - q->streaming = 1;
> -
> /*
> * Let driver notice that streaming state has been enabled.
> */
> - call_qop(q, start_streaming, q);
> + ret = call_qop(q, start_streaming, q);
> + if (ret) {
> + dprintk(1, "streamon: driver refused to start streaming\n");
> + return ret;
> + }
> +
> + q->streaming = 1;
>
> /*
> * If any buffers were queued before streamon,
> --
> 1.7.4.1
Best regards
--
Marek Szyprowski
Samsung Poland R&D Center
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