irda: convert to netdev_tx_t

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/irda/stir4200.c

@@ -560,7 +560,8 @@ static int change_speed(struct stir_cb *stir, unsigned speed)
 /*
  * Called from net/core when new frame is available.
  */
-static int stir_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t stir_hard_xmit(struct sk_buff *skb,
+					struct net_device *netdev)
 {
 	struct stir_cb *stir = netdev_priv(netdev);