From: David Howells <dhowells@redhat.com>
Date: Mon, 25 Jun 2012 11:55:18 +0000 (+0100)
Subject: VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors
X-Git-Tag: v3.6-rc1~152^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=be34d1a3bc4b6f357a49acb55ae870c81337e4f0;p=pandora-kernel.git

VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors

copy_tree() can theoretically fail in a case other than ENOMEM, but always
returns NULL which is interpreted by callers as -ENOMEM.  Change it to return
an explicit error.

Also change clone_mnt() for consistency and because union mounts will add new
error cases.

Thanks to Andreas Gruenbacher <agruen@suse.de> for a bug fix.
[AV: folded braino fix by Dan Carpenter]

Original-author: Valerie Aurora <vaurora@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Valerie Aurora <valerie.aurora@gmail.com>
Cc: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

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