tipc: remove rcu_read_unlock() left in tipc_udp_recv()

I forgot to remove one rcu_read_unlock() before a return statement.

Joy of mixing goto and return styles in a function :)

Fixes: 4109a2c3 ("tipc: tipc_udp_recv() cleanup vs rcu verbs")
Signed-off-by: NEric Dumazet <edumazet@google.com>
Reported-by: Nkbuild test robot <lkp@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/tipc/udp_media.c

@@ -360,7 +360,6 @@ static int tipc_udp_recv(struct sock *sk, struct sk_buff *skb)
 
 	if (b && test_bit(0, &b->up)) {
 		tipc_rcv(sock_net(sk), skb, b);
-		rcu_read_unlock();
 		return 0;
 	}