From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Thu, 30 Jan 2014 09:58:19 +0000 (+0100)
Subject: drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls behave... 
X-Git-Tag: v3.14-rc2~19^2~1^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf5e3413337309050c05e13dcebe85b7194a21e5;p=pandora-kernel.git

drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls behave like reservation calls"

The call to ttm_eu_backoff_reservation() as part of an error path would cause
a lock imbalance if the reservation ticket was not initialized. This error is
easily triggered from user-space by submitting a bogus command stream.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
---

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