From 23f340e0314eab461d33ae91250f9b47af23918f Mon Sep 17 00:00:00 2001
From: Inki Dae <inki.dae@samsung.com>
Date: Fri, 14 Jun 2013 17:54:27 +0900
Subject: [PATCH] drm/exynos: make sure to handle an error case to vm_mmap call

vm_mmap function returns unsigned long so addr type should be unsigned long.
a pointer or address variable is required to use unsigned long or uint64_t
type for 64bits address support.

So this patch makes sure that addr has unsigned long type and also
exynos_drm_gem_mmap_ioctl returns correct error type.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
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