[PATCH] drm: Don't pass negative delta to ktime_sub_ns()

[Michel Dänzer]

               vimOn Mit, 2013-07-17 at 12:58 +0100, Chris Wilson wrote:
> On Wed, Jun 12, 2013 at 11:58:44AM +0200, Michel Dänzer wrote:
> > From: Michel Dänzer <michel.daenzer at amd.com>
> > 
> > It takes an unsigned value. This happens not to blow up on 64-bit
> > architectures, but it does on 32-bit, causing
> > drm_calc_vbltimestamp_from_scanoutpos() to calculate totally bogus
> > timestamps for vblank events. Which in turn causes e.g. gnome-shell to
> > hang after a DPMS off cycle with current xf86-video-ati Git.
> > 
> > Cc: stable at vger.kernel.org
> > Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
> 
> Dave, it looks like you missed this patch.

Dave, any particular reason why this fix still isn't merged? It's
approaching its two-month anniversary...


-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer