diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-19 07:33:01 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-19 07:33:01 +0400 |
| commit | bd479f293370d863953aba59130bcc7ae867dd10 (patch) | |
| tree | b6987c9c622d1f98b680d6fce1447972d717761c /drivers/gpu/drm/drm_irq.c | |
| parent | 68c91d377c9bd14cbe35c647ed3b847f7862c958 (diff) | |
| parent | b36f4be3de1b123d8601de062e7dbfc904f305fb (diff) | |
| download | linux-bd479f293370d863953aba59130bcc7ae867dd10.tar.xz | |
Merge 3.11-rc6 into usb-next
We want these USB fixes in this branch as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 8bcce7866d36..f92da0a32f0d 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -708,7 +708,10 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, int crtc, /* Subtract time delta from raw timestamp to get final * vblank_time timestamp for end of vblank. */ - etime = ktime_sub_ns(etime, delta_ns); + if (delta_ns < 0) + etime = ktime_add_ns(etime, -delta_ns); + else + etime = ktime_sub_ns(etime, delta_ns); *vblank_time = ktime_to_timeval(etime); DRM_DEBUG("crtc %d : v %d p(%d,%d)@ %ld.%ld -> %ld.%ld [e %d us, %d rep]\n", |