From 7040138ff85501931138970663a988f48c0666f0 Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Tue, 21 Jan 2014 13:07:01 +0100
Subject: [PATCH] drm/ttm: call ttm_bo_wait while inside a reservation

This is the last remaining function that doesn't use the reservation
lock completely to fence off access to a buffer.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
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