From: Yan, Zheng <zyan@redhat.com>
Date: Tue, 7 Apr 2015 07:51:08 +0000 (+0800)
Subject: ceph: fix null pointer dereference in send_mds_reconnect()
X-Git-Tag: omap-for-v4.1/fixes-rc1~49^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c0bd50e2eeddf139d8f61e709d7003210301e93a;p=pandora-kernel.git

ceph: fix null pointer dereference in send_mds_reconnect()

sb->s_root can be null when umounting

Signed-off-by: Yan, Zheng <zyan@redhat.com>
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