econet: remove compiler warnings

net/econet/af_econet.c: In function ‘econet_sendmsg’:
net/econet/af_econet.c:494: warning: label ‘error’ defined but not used
net/econet/af_econet.c:268: warning: unused variable ‘sk’
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Phil Blundell <philb@gnu.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/econet/af_econet.c

@@ -265,13 +265,13 @@ static void ec_tx_done(struct sk_buff *skb, int result)
 static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 			  struct msghdr *msg, size_t len)
 {
-	struct sock *sk = sock->sk;
 	struct sockaddr_ec *saddr=(struct sockaddr_ec *)msg->msg_name;
 	struct net_device *dev;
 	struct ec_addr addr;
 	int err;
 	unsigned char port, cb;
 #if defined(CONFIG_ECONET_AUNUDP) || defined(CONFIG_ECONET_NATIVE)
+	struct sock *sk = sock->sk;
 	struct sk_buff *skb;
 	struct ec_cb *eb;
 #endif
@@ -488,10 +488,10 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 error_free_buf:
 	vfree(userbuf);
+error:
 #else
 	err = -EPROTOTYPE;
 #endif
-	error:
 	mutex_unlock(&econet_mutex);
 
 	return err;