diff options
Diffstat (limited to 'drivers/input/touchscreen')
| -rw-r--r-- | drivers/input/touchscreen/sur40.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c index 8add986abc82..8be7b9b79f20 100644 --- a/drivers/input/touchscreen/sur40.c +++ b/drivers/input/touchscreen/sur40.c @@ -438,6 +438,10 @@ static void sur40_process_video(struct sur40_state *sur40) dev_dbg(sur40->dev, "image acquired\n"); + /* return error if streaming was stopped in the meantime */ + if (sur40->sequence == -1) + goto err_poll; + /* mark as finished */ v4l2_get_timestamp(&new_buf->vb.v4l2_buf.timestamp); new_buf->vb.v4l2_buf.sequence = sur40->sequence++; @@ -723,6 +727,7 @@ static int sur40_start_streaming(struct vb2_queue *vq, unsigned int count) static void sur40_stop_streaming(struct vb2_queue *vq) { struct sur40_state *sur40 = vb2_get_drv_priv(vq); + sur40->sequence = -1; /* Release all active buffers */ return_all_buffers(sur40, VB2_BUF_STATE_ERROR); |