drm/i915/ppgtt: Break loop in gen8_ppgtt_clear_range failure path

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commit 00245266b4 upstream.

If for some reason [1], the page directory/table does not exist, clear_range
would end up in an infinite while loop.

Introduced by commit 06fda602db ("drm/i915: Create page table allocators").

[1] This is already being addressed in one of Mika's patches:
http://mid.gmane.org/1432314314-23530-17-git-send-email-mika.kuoppala@intel.com

Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reported-by: John Harrison <john.c.harrison@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Michel Thierry 2015-06-25 12:59:38 +01:00 • committed by Greg Kroah-Hartman

parent 598f69d4fb

commit 28362ad0c5

1 changed files with 3 additions and 3 deletions

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drivers/gpu/drm/i915/i915_gem_gtt.c

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