From 94bf608a18fa4421315275a81c5489734599297a Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 9 Jan 2012 15:53:24 -0500
Subject: [PATCH] ext4: fix failure exits

a) leaking root dentry is bad
b) in case of failed ext4_mb_init() we don't want to do ext4_mb_release()
c) OTOH, in the same case we *do* want ext4_ext_release()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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