netxen: Fix bug in Tx completion path.

o Driver is not updating sw_consumer while processing Tx completion
  when interface is going down. Due to this interface down path gets
  stuck forever waiting for NAPI to complete.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
index ae4ec7b..5c40683 100644 (file)
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_init.c
@@ -1794,9 +1794,9 @@ int netxen_process_cmd_ring(struct netxen_adapter *adapter)
                        break;
        }
 
-       if (count && netif_running(netdev)) {
-               tx_ring->sw_consumer = sw_consumer;
+       tx_ring->sw_consumer = sw_consumer;
 
+       if (count && netif_running(netdev)) {
                smp_mb();
 
                if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))