drm/i915: Make the mutex_lock interruptible on ioctl paths
authorChris Wilson <chris@chris-wilson.co.uk>
Sat, 25 Sep 2010 10:22:51 +0000 (11:22 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Sat, 25 Sep 2010 11:23:12 +0000 (12:23 +0100)
... and combine it with the wedged completion handler.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

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