ipv6: old_dport should be a __be16 in __ip6_datagram_connect()

Fixes: 2f987a76 ("net: ipv6: keep sk status consistent after datagram connect failure")
Signed-off-by: NStefano Brivio <sbrivio@redhat.com>
Acked-by: NPaolo Abeni <pabeni@redhat.com>
Acked-by: NGuillaume Nault <g.nault@alphalink.fr>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv6/datagram.c

@@ -149,7 +149,7 @@ int __ip6_datagram_connect(struct sock *sk, struct sockaddr *uaddr,
 	struct in6_addr		*daddr, old_daddr;
 	__be32			fl6_flowlabel = 0;
 	__be32			old_fl6_flowlabel;
-	__be32			old_dport;
+	__be16			old_dport;
 	int			addr_type;
 	int			err;