audit: print error message when fail to create audit socket

print the error message and then return -ENOMEM.
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>

kernel/audit.c

@@ -1082,11 +1082,10 @@ static int __net_init audit_net_init(struct net *net)
 	pr_info("audit: initializing netlink socket in namespace\n");
 
 	aunet->nlsk = netlink_kernel_create(net, NETLINK_AUDIT, &cfg);
-	if (aunet->nlsk == NULL)
-		return -ENOMEM;
-	if (!aunet->nlsk)
+	if (aunet->nlsk == NULL) {
 		audit_panic("cannot initialize netlink socket in namespace");
-	else
+		return -ENOMEM;
+	}
 	aunet->nlsk->sk_sndtimeo = MAX_SCHEDULE_TIMEOUT;
 	return 0;
 }