From: Zhao Hongjiang <zhaohongjiang@huawei.com>
Date: Thu, 13 Sep 2012 08:38:03 +0000 (+0800)
Subject: userns: fix return value on mntns_install() failure
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ae11e0f18482bfe0cd83b9b61434ea7e0bd94e25;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

userns: fix return value on mntns_install() failure

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

Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
---

diff --git a/fs/namespace.c b/fs/namespace.c
index 9ddc86f93221..cab78a74aca3 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;