Commit fc52eea4 authored Apr 03, 2013 by Alan Ott Committed by David S. Miller Apr 07, 2013

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>

parent e937f583

net/ieee802154/6lowpan.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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)