drm/i915: Replace open-coding of DEFAULT_CONTEXT_ID

The intent of the check is made more clear if we use the proper name for
0 here.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2013-07-03 17:22:07 +03:00 • committed by Daniel Vetter
commit e852096986