linux-kernel - [PATCH review 6/6] userns: fix return value on mntns

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Date:	Mon, 19 Nov 2012 02:50:22 -0800
From:	"Eric W. Biederman" <ebiederm@...ssion.com>
To:	<linux-fsdevel@...r.kernel.org>
Cc:	Linux Containers <containers@...ts.linux-foundation.org>,
	<linux-kernel@...r.kernel.org>, Al Viro <viro@...IV.linux.org.uk>,
	Zhao Hongjiang <zhaohongjiang@...wei.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: [PATCH review 6/6] userns: fix return value on mntns_install() failure

From: Zhao Hongjiang <zhaohongjiang@...wei.com>

Change return value from -EINVAL to -EPERM when the permission check fails.

Signed-off-by: Zhao Hongjiang <zhaohongjiang@...wei.com>
Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
---
 fs/namespace.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 9ddc86f..cab78a7 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2775,7 +2775,7 @@ static int mntns_install(struct nsproxy *nsproxy, void *ns)
 
 	if (!ns_capable(mnt_ns->user_ns, CAP_SYS_ADMIN) ||
 	    !nsown_capable(CAP_SYS_CHROOT))
-		return -EINVAL;
+		return -EPERM;
 
 	if (fs->users != 1)
 		return -EINVAL;
-- 
1.7.5.4

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