diff options
Diffstat (limited to 'drivers/media/video/uvc/uvc_queue.c')
| -rw-r--r-- | drivers/media/video/uvc/uvc_queue.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/media/video/uvc/uvc_queue.c b/drivers/media/video/uvc/uvc_queue.c index 0155752e4a5a..f854698c4061 100644 --- a/drivers/media/video/uvc/uvc_queue.c +++ b/drivers/media/video/uvc/uvc_queue.c @@ -172,6 +172,20 @@ int uvc_free_buffers(struct uvc_video_queue *queue) return 0; } +/* + * Check if buffers have been allocated. + */ +int uvc_queue_allocated(struct uvc_video_queue *queue) +{ + int allocated; + + mutex_lock(&queue->mutex); + allocated = queue->count != 0; + mutex_unlock(&queue->mutex); + + return allocated; +} + static void __uvc_query_buffer(struct uvc_buffer *buf, struct v4l2_buffer *v4l2_buf) { |