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/3c515.c b/drivers/net/3c515.c
index 3e00fa8..85ffd13 100644
--- a/drivers/net/3c515.c
+++ b/drivers/net/3c515.c
@@ -1054,7 +1054,7 @@
 			netif_wake_queue(dev);
 		}
 		dev->trans_start = jiffies;
-		return 0;
+		return NETDEV_TX_OK;
 	}
 	/* Put out the doubleword header... */
 	outl(skb->len, ioaddr + TX_FIFO);
@@ -1117,7 +1117,7 @@
 			outb(0x00, ioaddr + TxStatus);	/* Pop the status stack. */
 		}
 	}
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /* The interrupt handler does all of the Rx thread work and cleans up