From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Date: Tue, 22 May 2012 03:55:32 +0000 (+1000)
Subject: md: check the return of mddev_find()
X-Git-Tag: v3.5-rc1~110^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c098220e2320c1f0c9339d0ff05c5e04672133a;p=pandora-kernel.git

md: check the return of mddev_find()

Check the return of mddev_find(), since it may fail due to out of
memeory or out of usable minor number.

The reason I chose -ENODEV instead of -ENOMEM or something else is
md_alloc() function chose that ;)

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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