From: Ian Kent <raven@themaw.net>
Date: Tue, 18 Jan 2011 04:06:10 +0000 (+0800)
Subject: vfs - fix dentry ref count in do_lookup()
X-Git-Tag: v2.6.38-rc1~11^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8931221411f9ff950de8fd686dc5ab881394cb9a;p=pandora-kernel.git

vfs - fix dentry ref count in do_lookup()

There is a ref count problem in fs/namei.c:do_lookup().

When walking in ref-walk mode, if follow_managed() returns a fail we
need to drop dentry and possibly vfsmount.  Clean up properly,
as we do in the other caller of follow_managed().

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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