From ff4c0d5213b015e60aa87c1352604f10ba9c3e12 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Bruno=20Pr=C3=A9mont?= <bonbons@linux-vserver.org>
Date: Sun, 21 Dec 2014 17:43:31 +0100
Subject: [PATCH] drm/nouveau/nouveau: Do not BUG_ON(!spin_is_locked()) on UP
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On !SMP systems spinlocks do not exist. Thus checking of they
are active will always fail.

Use
  assert_spin_locked(lock);
instead of
  BUG_ON(!spin_is_locked(lock));
to not BUG() on all UP systems.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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