From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 11 Feb 2009 14:26:44 +0000 (+0000)
Subject: drm/i915: First recheck for an empty fence register.
X-Git-Tag: v2.6.29-rc8~26^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b2412f9ad0a3913baa40c270d6e1fa3c6d50067;p=pandora-kernel.git

drm/i915: First recheck for an empty fence register.

If we wait upon a request and successfully unbind a buffer occupying a
fence register, then that slot will be freed and cause a NULL derefrence
upon rescanning.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
---

Reading git-diff-tree failed