irda: convert to netdev_tx_t

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/irda/mcs7780.c b/drivers/net/irda/mcs7780.c
index f4df100..b3d30bc 100644
--- a/drivers/net/irda/mcs7780.c
+++ b/drivers/net/irda/mcs7780.c
@@ -817,7 +817,8 @@
 }
 
 /* Transmit callback funtion.  */
-static int mcs_hard_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t mcs_hard_xmit(struct sk_buff *skb,
+				       struct net_device *ndev)
 {
 	unsigned long flags;
 	struct mcs_cb *mcs;