diff options
Diffstat (limited to 'drivers/media/usb/uvc/uvc_queue.c')
| -rw-r--r-- | drivers/media/usb/uvc/uvc_queue.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/usb/uvc/uvc_queue.c b/drivers/media/usb/uvc/uvc_queue.c index b11f56d62ec0..790184c9843d 100644 --- a/drivers/media/usb/uvc/uvc_queue.c +++ b/drivers/media/usb/uvc/uvc_queue.c @@ -175,12 +175,18 @@ static int uvc_start_streaming_video(struct vb2_queue *vq, unsigned int count) lockdep_assert_irqs_enabled(); + ret = uvc_pm_get(stream->dev); + if (ret) + return ret; + queue->buf_used = 0; ret = uvc_video_start_streaming(stream); if (ret == 0) return 0; + uvc_pm_put(stream->dev); + uvc_queue_return_buffers(queue, UVC_BUF_STATE_QUEUED); return ret; @@ -189,11 +195,14 @@ static int uvc_start_streaming_video(struct vb2_queue *vq, unsigned int count) static void uvc_stop_streaming_video(struct vb2_queue *vq) { struct uvc_video_queue *queue = vb2_get_drv_priv(vq); + struct uvc_streaming *stream = uvc_queue_to_stream(queue); lockdep_assert_irqs_enabled(); uvc_video_stop_streaming(uvc_queue_to_stream(queue)); + uvc_pm_put(stream->dev); + uvc_queue_return_buffers(queue, UVC_BUF_STATE_ERROR); } |