From 56fb5380c76d75d30b0e7acdfd36de34b4ee4375 Mon Sep 17 00:00:00 2001
From: Subash Patel <subash.rp@samsung.com>
Date: Mon, 25 Jun 2012 11:22:56 -0700
Subject: [PATCH] drm/exynos: return NULL if exynos_pages_to_sg fails

exynos_pages_to_sg() internally calls sg_kmalloc() which can return
no pages when the system is under high memory crunch. One such instance
is chromeos-install in the chromeos. This patch adds check for the return
value of the function in subject to return NULL on failure.

Signed-off-by: Subash Patel <subash.ramaswamy@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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Reading git-format-patch failed