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/net/mac80211/tx.c b/net/mac80211/tx.c
index 364222bfb10d..d238a8939a09 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1615,7 +1615,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 {
         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
         struct ieee80211_local *local = sdata->local;
-        int ret = 1, head_need;
+        int ret = NETDEV_TX_BUSY, head_need;
         u16 ethertype, hdrlen,  meshhdrlen = 0;
         __le16 fc;
         struct ieee80211_hdr hdr;