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/declance.c b/drivers/net/declance.c
index 2b22e58..a31696a 100644
--- a/drivers/net/declance.c
+++ b/drivers/net/declance.c
@@ -902,7 +902,7 @@
 
 	if (len < ETH_ZLEN) {
 		if (skb_padto(skb, ETH_ZLEN))
-			return 0;
+			return NETDEV_TX_OK;
 		len = ETH_ZLEN;
 	}
 
@@ -933,7 +933,7 @@
 	dev->trans_start = jiffies;
 	dev_kfree_skb(skb);
 
- 	return 0;
+ 	return NETDEV_TX_OK;
 }
 
 static void lance_load_multicast(struct net_device *dev)