From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 6 Jun 2013 15:16:43 +0000 (-0400)
Subject: ext4: add sanity check to ext4_get_group_info()
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~83^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f2e09eb15849562aede80ed007658e4504ded26;p=pandora-kernel.git

ext4: add sanity check to ext4_get_group_info()

The group number passed to ext4_get_group_info() should be valid, but
let's add an assert to check this before we start creating a pointer
based on that group number and dereferencing it.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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