Re: [PATCH] userns: fix return value on mntns_install() failure

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Quoting Zhao Hongjiang (zhaohongjiang37@xxxxxxxxx):
> From: Zhao Hongjiang <zhaohongjiang@xxxxxxxxxx>
> 
> Change return value from -EINVAL to -EPERM when the permission check fails.
> 
> Signed-off-by: Zhao Hongjiang <zhaohongjiang@xxxxxxxxxx>

That also matches what other *_install do.

Acked-by: Serge E. Hallyn <serge.hallyn@xxxxxxxxxxxxx>

> ---
>  fs/namespace.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/namespace.c b/fs/namespace.c
> index 72be266..1e79d20 100644
> --- a/fs/namespace.c
> +++ b/fs/namespace.c
> @@ -2764,7 +2764,7 @@ 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;
> -- 1.7.1
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