From: Hans Verkuil <hans.verkuil@xxxxxxxxx> If __reqbufs was called then existing buffers are freed. However, if that happens without ever having started STREAMON, but if buffers have been queued, then the buf_finish op is never called. Add a call to __vb2_queue_cancel in __reqbufs so that these buffers are cleaned up there as well. Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> --- drivers/media/v4l2-core/videobuf2-core.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c index 1f6eccf..8dc8d50 100644 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@ -96,6 +96,8 @@ module_param(debug, int, 0644); V4L2_BUF_FLAG_PREPARED | \ V4L2_BUF_FLAG_TIMESTAMP_MASK) +static void __vb2_queue_cancel(struct vb2_queue *q); + /** * __vb2_buf_mem_alloc() - allocate video memory for the given buffer */ @@ -789,6 +791,12 @@ static int __reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req) return -EBUSY; } + /* + * Call queue_cancel to clean up any buffers in the PREPARED or + * QUEUED state which is possible if buffers were prepared or + * queued without ever calling STREAMON. + */ + __vb2_queue_cancel(q); ret = __vb2_queue_free(q, q->num_buffers); if (ret) return ret; -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
