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authorAlan Ott <alan@signal11.us>2013-04-03 04:00:58 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-07 17:06:44 -0400
commitfc52eea4c5f160d1b42fa1852fece38e5a0fc991 (patch)
tree7f9e5d634244531f1d76adb2aaeb9e501f085295
parente937f583ec3a40cccd480b40d8c6d54751781587 (diff)
6lowpan: handle dev_queue_xmit() error code properly
dev_queue_xmit() will return a positive value if the packet could not be queued, often because the real network device (in our case the mac802154 wpan device) has its queue stopped. lowpan_xmit() should handle the positive return code (for the debug statement) and return that value to the higher layer so the higher layer will retry sending the packet. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ieee802154/6lowpan.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index e1b4580f78dd..55e1fd5b3e56 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1139,10 +1139,10 @@ static netdev_tx_t lowpan_xmit(struct sk_buff *skb, struct net_device *dev)
error:
dev_kfree_skb(skb);
out:
- if (err < 0)
+ if (err)
pr_debug("ERROR: xmit failed\n");
- return (err < 0 ? NETDEV_TX_BUSY : NETDEV_TX_OK);
+ return (err < 0) ? NET_XMIT_DROP : err;
}
static struct wpan_phy *lowpan_get_phy(const struct net_device *dev)