[Intel-gfx] [PATCH 1/2] drm/i915: Cancel reset preparations on failed resets

[Chris Wilson]

Quoting Mika Kuoppala (2018-06-05 17:03:56)
> Our reset handling has a retry layer further up in the
> chain. As we have told the engine to prepare for reset,
> and failed it, make sure to remove that preparation so
> that the next attempted reset has a clean slate by triggering
> another full prepare cycle for the engines.
> 
> v2: ret as int, simplified cleanup (Chris)
> 
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Signed-off-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris