From: Christian König <deathsimple@vodafone.de>
Date: Wed, 2 May 2012 13:11:18 +0000 (+0200)
Subject: drm/radeon: fix a bug with the ring syncing code
X-Git-Tag: v3.5-rc1~83^2~69
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f676c4c6f0f500616560f13c0276ab6b4e39a6a;p=pandora-kernel.git

drm/radeon: fix a bug with the ring syncing code

Rings need to lock in order, otherwise
the ring subsystem can deadlock.

v2: fix error handling and number of locked doublewords.
v3: stop creating unneeded semaphores.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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