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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>
This commit is contained in:
Zhao Hongjiang 2012-09-13 16:38:03 +08:00 committed by Eric W. Biederman
parent 0c55cfc416
commit ae11e0f184
1 changed files with 1 additions and 1 deletions
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2
fs/namespace.c
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@ -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;