[PATCH] drm/amdgpu: Count disabled CRTCs in commit tail earlier

michel@xxxxxxxxxxx (Michel Dänzer) · Fri, 22 Jun 2018 09:38:30 +0200

On 2018-06-21 10:48 PM, Lyude Paul wrote:
> This fixes a regression I accidentally reduced that was picked up by
> kasan, where we were checking the CRTC atomic states after DRM's helpers
> had already freed them. Example:
> 
> [...]
> 
> So, we fix this by counting the number of CRTCs this atomic commit disabled
> early on in the function before their atomic states have been freed, then use
> that count later to do the appropriate number of RPM puts at the end of the
> function.
> 
> Fixes: 97028037a38ae ("drm/amdgpu: Grab/put runtime PM references in atomic_commit_tail()")
> Signed-off-by: Lyude Paul <lyude at redhat.com>
> Cc: Michel DÃ¤nzer <michel at daenzer.net>
> Reported-by: Michel DÃ¤nzer <michel at daenzer.net>

Actually, it was reported by Tom St Denis <tom.stdenis at amd.com>. With
that fixed,

Acked-by: Michel DÃ¤nzer <michel.daenzer at amd.com>

(needs review by DC folks)

-- 
Earthling Michel DÃ¤nzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer