net: use symbolic values for ndo_start_xmit() return codes

Convert magic values 1 and -1 to NETDEV_TX_BUSY and NETDEV_TX_LOCKED respectively.

0 (NETDEV_TX_OK) is not changed to keep the noise down, except in very few cases
where its in direct proximity to one of the other values.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/starfire.c b/drivers/net/starfire.c
index fcb943fca4f1..838cce8b8fff 100644
--- a/drivers/net/starfire.c
+++ b/drivers/net/starfire.c
@@ -1236,7 +1236,7 @@ static int start_tx(struct sk_buff *skb, struct net_device *dev)
          */
         if ((np->cur_tx - np->dirty_tx) + skb_num_frags(skb) * 2 > TX_RING_SIZE) {
                 netif_stop_queue(dev);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
 #if defined(ZEROCOPY) && defined(HAS_BROKEN_FIRMWARE)