From: Ilya Dryomov <ilya.dryomov@inktank.com>
Date: Fri, 20 Jun 2014 14:29:20 +0000 (+0400)
Subject: libceph: unregister only registered linger requests
X-Git-Tag: cleanup-for-v3.18~44^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af59306455587143615517ade1ffce2e8f4fda48;p=pandora-kernel.git

libceph: unregister only registered linger requests

Linger requests that have not yet been registered should not be
unregistered by __unregister_linger_request().  This messes up ref
count and leads to use-after-free.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
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