Commit c82b9d7f authored Jun 19, 2011 by Eric Dumazet Committed by David S. Miller Jun 20, 2011

netxen: fix race in skb->len access



As soon as skb is given to hardware, TX completion can free skb under
us.
Therefore, we should update dev stats before kicking the device.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 44da29d2

drivers/net/netxen/netxen_nic_main.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -1965,11 +1965,11 @@ netxen_nic_xmit_frame(struct sk_buff skb, struct net_device netdev)

		netxen_tso_check(netdev, tx_ring, first_desc, skb);

		netxen_nic_update_cmd_producer(adapter, tx_ring);

		adapter->stats.txbytes += skb->len;
		adapter->stats.xmitcalled++;

		netxen_nic_update_cmd_producer(adapter, tx_ring);

		return NETDEV_TX_OK;

		drop_packet: