From: Pavel <xemul@openvz.org>

This patch fixes copy_namespaces()'s error path.

when new nsproxy (new_ns) is created pointers to namespaces (ipc, uts) are
copied from the old nsproxy.  Later in copy_utsname, copy_ipcs, etc. 
according namespaces are get-ed.  On error path needed namespaces are
put-ed, so there's no need to put new nsproxy itelf as it woud cause
putting namespaces for the second time.

Found when incorporating namespaces into OpenVZ kernel.

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 kernel/nsproxy.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN kernel/nsproxy.c~ipc-namespace-fix kernel/nsproxy.c
--- a/kernel/nsproxy.c~ipc-namespace-fix
+++ a/kernel/nsproxy.c
@@ -123,7 +123,7 @@ out_uts:
 		put_namespace(new_ns->namespace);
 out_ns:
 	tsk->nsproxy = old_ns;
-	put_nsproxy(new_ns);
+	kfree(new_ns);
 	goto out;
 }
 
_