From: Sage Weil <sage@newdream.net>
Date: Tue, 23 Nov 2010 06:58:06 +0000 (-0800)
Subject: ceph: avoid possible null deref in readdir after dir llseek
X-Git-Tag: v2.6.37-rc6~33^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=884ea892763d4dfba509743f65961c782c0442db;p=pandora-kernel.git

ceph: avoid possible null deref in readdir after dir llseek

last may be NULL, but we dereference it in the else branch without
checking.  Normally it doesn't trigger because last == NULL when fpos == 2,
but it could happen on a newly opened dir if the user seeks forward.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
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