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, 3 insertions, 3 deletions

diff --git a/drivers/isdn/i4l/isdn_net.c b/drivers/isdn/i4l/isdn_net.c
index cb8943da4f12..34d54e7281fd 100644
--- a/drivers/isdn/i4l/isdn_net.c
+++ b/drivers/isdn/i4l/isdn_net.c
@@ -1069,7 +1069,7 @@ isdn_net_xmit(struct net_device *ndev, struct sk_buff *skb)
         lp = isdn_net_get_locked_lp(nd);
         if (!lp) {
                 printk(KERN_WARNING "%s: all channels busy - requeuing!\n", ndev->name);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
         /* we have our lp locked from now on */
 
@@ -1273,14 +1273,14 @@ isdn_net_start_xmit(struct sk_buff *skb, struct net_device *ndev)
                                         spin_unlock_irqrestore(&dev->lock, flags);
                                         isdn_net_dial();        /* Initiate dialing */
                                         netif_stop_queue(ndev);
-                                        return 1;       /* let upper layer requeue skb packet */
+                                        return NETDEV_TX_BUSY;  /* let upper layer requeue skb packet */
                                 }
 #endif
                                 /* Initiate dialing */
                                 spin_unlock_irqrestore(&dev->lock, flags);
                                 isdn_net_dial();
                                 isdn_net_device_stop_queue(lp);
-                                return 1;
+                                return NETDEV_TX_BUSY;
                         } else {
                                 isdn_net_unreachable(ndev, skb,
                                                      "No phone number");