From: Zhonghua Guo <guozhonghua@h3c.com>
Date: Thu, 3 Apr 2014 21:47:02 +0000 (-0700)
Subject: ocfs2: fix deadlock risk when kmalloc failed in dlm_query_region_handler
X-Git-Tag: v3.15-rc1~106^2~198
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a35ad97cd48cfab45f4ee5eb0e6f5787a05cab25;p=pandora-kernel.git

ocfs2: fix deadlock risk when kmalloc failed in dlm_query_region_handler

In dlm_query_region_handler(), once kmalloc failed, it will unlock
dlm_domain_lock without lock first, then deadlock happens.

Signed-off-by: Zhonghua Guo <guozhonghua@h3c.com>
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Reviewed-by: Srinivas Eeda <srinivas.eeda@oracle.com>
Tested-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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