Bluetooth: Keep chan->state and sk->sk_state in sync

Those vars need to be in sync, otherwise l2cap_core.c can get the wrong
state.
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

net/bluetooth/l2cap_sock.c

@@ -587,6 +587,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, ch
 			if (smp_conn_security(conn, sec.level))
 				break;
 			sk->sk_state = BT_CONFIG;
+			chan->state = BT_CONFIG;
 
 		/* or for ACL link, under defer_setup time */
 		} else if (sk->sk_state == BT_CONNECT2 &&
@@ -731,6 +732,7 @@ static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct ms
 
 	if (sk->sk_state == BT_CONNECT2 && bt_sk(sk)->defer_setup) {
 		sk->sk_state = BT_CONFIG;
+		pi->chan->state = BT_CONFIG;
 
 		__l2cap_connect_rsp_defer(pi->chan);
 		release_sock(sk);