From: Kinglong Mee <kinglongmee@gmail.com>
Date: Wed, 30 Jul 2014 13:26:05 +0000 (+0800)
Subject: NFSD: Decrease nfsd_users in nfsd_startup_generic fail
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~101^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d9499a95716db0d4bc9b67e88fd162133e7d6b08;p=pandora-kernel.git

NFSD: Decrease nfsd_users in nfsd_startup_generic fail

A memory allocation failure could cause nfsd_startup_generic to fail, in
which case nfsd_users wouldn't be incorrectly left elevated.

After nfsd restarts nfsd_startup_generic will then succeed without doing
anything--the first consequence is likely nfs4_start_net finding a bad
laundry_wq and crashing.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Fixes: 4539f14981ce "nfsd: replace boolean nfsd_up flag by users counter"
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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