https://bugzilla.kernel.org/show_bug.cgi?id=39972

--- Comment #7 from Florian Mickler florian@mickler.org 2011-08-15 09:09:44 --- Robert, can you test if that commit solves your problem?

You might be able to test it by adding git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git as a remote and cherry pick 33ae1827d6c3c79c5957536ec29d5a8780623147 onto Linus' tree.