diff options
| author | Kieran Bingham <kieran.bingham@ideasonboard.com> | 2017-03-23 08:25:14 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-12-05 03:10:06 -0500 |
| commit | e829b262a6782ee36ee04e32a2fc7341385ac7fe (patch) | |
| tree | 22240f51d2aafe89606bd23718732992a9eeda7f /drivers/media/usb/uvc/uvcvideo.h | |
| parent | c6d664fe8a7a47af1c63c037e20570d4abbda3c6 (diff) | |
| download | linux-e829b262a6782ee36ee04e32a2fc7341385ac7fe.tar.bz2 | |
media: uvcvideo: Protect queue internals with helper
The URB completion operation obtains the current buffer by reading
directly into the queue internal interface.
Protect this queue abstraction by providing a helper
uvc_queue_get_current_buffer() which can be used by both the decode
task, and the uvc_queue_next_buffer() functions.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/usb/uvc/uvcvideo.h')
| -rw-r--r-- | drivers/media/usb/uvc/uvcvideo.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index 35ba48769244..f6109a4dde5b 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -728,6 +728,7 @@ int uvc_queue_streamoff(struct uvc_video_queue *queue, enum v4l2_buf_type type); void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect); struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf); +struct uvc_buffer *uvc_queue_get_current_buffer(struct uvc_video_queue *queue); int uvc_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma); __poll_t uvc_queue_poll(struct uvc_video_queue *queue, struct file *file, |