From d386735588c3e22129c2bc6eb64fc1d37a8f805c Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Sun, 8 Dec 2013 23:23:57 -0800
Subject: [PATCH] drm/ttm: Fix accesses through vmas with only partial coverage

VMAs covering a bo but that didn't start at the same address space offset as
the bo they were mapping were incorrectly generating SEGFAULT errors in
the fault handler.

Reported-by: Joseph Dolinak <kanilo2@yahoo.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
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