From: Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx>
The statistics function subtracts two timespecs manually. A helper is
provided by the kernel to do this.
Replace the implementation, using the helper.
Signed-off-by: Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx>
---
drivers/media/usb/uvc/uvc_video.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index 7777ed24908b..cff02c6df1b8 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -868,14 +868,8 @@ size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf,
struct timespec ts;
size_t count = 0;
- ts.tv_sec = stream->stats.stream.stop_ts.tv_sec
- - stream->stats.stream.start_ts.tv_sec;
- ts.tv_nsec = stream->stats.stream.stop_ts.tv_nsec
- - stream->stats.stream.start_ts.tv_nsec;
- if (ts.tv_nsec < 0) {
- ts.tv_sec--;
- ts.tv_nsec += 1000000000;
- }
+ ts = timespec_sub(stream->stats.stream.stop_ts,
+ stream->stats.stream.start_ts);
/* Compute the SCR.SOF frequency estimate. At the nominal 1kHz SOF
* frequency this will not overflow before more than 1h.
--
2.7.4
