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Commit 5db2c3ba authored by Pawel Osciak's avatar Pawel Osciak Committed by Mauro Carvalho Chehab
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[media] vb2: Handle return value from start_streaming callback 



Fix vb2 not handling return value from start_streaming() callback.

Signed-off-by: default avatarPawel Osciak <pawel@osciak.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 4ffabdb3

drivers/media/video/videobuf2-core.c

+8 −3
Original line number Diff line number Diff line
@@ -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,