@@ -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,