From a06b9a74c73750835b8fd69fe0d0bd7877da111b Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Date: Thu, 27 Jun 2013 13:38:25 +0200
Subject: [PATCH] drm/mgag200: do not attempt to acquire a reservation while in
 an interrupt handler

Mutexes should not be acquired in interrupt context. While the trylock
fastpath is arguably safe on all implementations, the slowpath
unlock path definitely isn't.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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