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path: root/drivers/input/touchscreen
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Diffstat (limited to 'drivers/input/touchscreen')
-rw-r--r--drivers/input/touchscreen/sur40.c5
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);