drm/nouveau: bail out of auxch transaction if we repeatedly recieve defers
authorBen Skeggs <bskeggs@redhat.com>
Mon, 15 Mar 2010 22:45:07 +0000 (08:45 +1000)
committerBen Skeggs <bskeggs@redhat.com>
Fri, 9 Apr 2010 00:20:15 +0000 (10:20 +1000)
There's one known case where we never stop recieving DEFER, and loop here
forever.  Lets not do that..

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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