From: Joe Thornber <ejt@redhat.com>
Date: Tue, 11 Mar 2014 16:46:25 +0000 (+0000)
Subject: dm era: check for a non-NULL metadata object before closing it
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~37^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=989f26f5ad308f40a95f280bf9cd75e558d4f18d;p=pandora-kernel.git

dm era: check for a non-NULL metadata object before closing it

era_ctr() may call era_destroy() before era->md is initialized so
era_destory() must only close the metadata object if it is not NULL.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Naohiro Aota <naota@elisp.net>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.15+
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