md/bitmap:Don't use IS_ERR to judge alloc_page().
authorJianpeng Ma <majianpeng@gmail.com>
Thu, 11 Oct 2012 02:45:36 +0000 (13:45 +1100)
committerNeilBrown <neilb@suse.de>
Thu, 11 Oct 2012 02:45:36 +0000 (13:45 +1100)
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>

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