netfilter: nf_tables: fix check for table overflow

The table use counter is only increased for new chains, so move the check
to the correct position.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

net/netfilter/nf_tables_api.c

@@ -834,9 +834,6 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
-	if (table->use == UINT_MAX)
-		return -EOVERFLOW;
-
 	chain = NULL;
 	name = nla[NFTA_CHAIN_NAME];
 
@@ -899,6 +896,9 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 		goto notify;
 	}
 
+	if (table->use == UINT_MAX)
+		return -EOVERFLOW;
+
 	if (nla[NFTA_CHAIN_HOOK]) {
 		struct nf_hook_ops *ops;
 		nf_hookfn *hookfn;