From 901782b21ecb2af4dde1598b3142bf0e80b20853 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 10 Jul 2009 08:18:50 +0100
Subject: [PATCH] drm/i915: Refactor calls to unmap_mapping_range

As we call unmap_mapping_range() twice in identical fashion, refactor
and attempt to explain why we need to call unmap_mapping_range().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
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