drm/i915: Mark a few functions as __must_check
authorChris Wilson <chris@chris-wilson.co.uk>
Tue, 23 Nov 2010 15:26:33 +0000 (15:26 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Thu, 25 Nov 2010 15:04:04 +0000 (15:04 +0000)
... to benefit from the compiler checking that we remember to handle
and propagate errors.

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

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