[Intel-gfx] [PATCH] drm/atomic: Call ww_acquire_done after check phase is complete

[Daniel Vetter]

On Thu, Aug 06, 2015 at 03:06:40PM +0200, Daniel Vetter wrote:
> We want to make sure that no one tries to acquire more locks and
> states, and ww mutexes provide debug facilities for that. So use them.
> 
> v2: Only call acquire_done when ->atomic_check was successful to avoid
> falling over an -EDEADLK (spotted by Maarten).
> 
> Cc: Rob Clark <robdclark at gmail.com>
> Cc: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>

Picked up to drm-misc with Maarten's irc r-b.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch