commit ae11e0f18482bfe0cd83b9b61434ea7e0bd94e25
author Zhao Hongjiang <zhaohongjiang@huawei.com> Thu Sep 13 16:38:03 2012 +0800
committer Eric W. Biederman <ebiederm@xmission.com> Mon Nov 19 05:59:22 2012 -0800
tree 13356ea5b2a0316b1daf2661adeec05b0d5f78b2
parent 0c55cfc4166d9a0f38de779bd4d75a90afbe7734

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>

fs/namespace.c

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 @@
 
 	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;