net: use NETDEV_TX_OK instead of 0 in ndo_start_xmit() functions

This patch is the result of an automatic spatch transformation to convert
all ndo_start_xmit() return values of 0 to NETDEV_TX_OK.

Some occurences are missed by the automatic conversion, those will be
handled in a seperate patch.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c
index e44215c..e36e951 100644
--- a/drivers/net/iseries_veth.c
+++ b/drivers/net/iseries_veth.c
@@ -1205,7 +1205,7 @@
 
 		if ( ! ((1 << rlp) & port->lpar_map) ) {
 			dev_kfree_skb(skb);
-			return 0;
+			return NETDEV_TX_OK;
 		}
 
 		lpmask = 1 << rlp;
@@ -1217,7 +1217,7 @@
 
 	dev_kfree_skb(skb);
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /* You must hold the connection's lock when you call this function. */