gru: handle failures to mmu_notifier_register
authorJack Steiner <steiner@sgi.com>
Wed, 16 Dec 2009 00:48:08 +0000 (16:48 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 16 Dec 2009 15:20:15 +0000 (07:20 -0800)
Under some conditions, mmu_notifier_register() will fail to register a
mmu_notifier.  Fix the GRU driver to correctly handle these failures.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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