netxen: protect tx timeout recovery by rtnl lock

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 8 deletions

diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 6ce6ce1df6d2..fd86e18604e6 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -2001,27 +2001,26 @@ static void netxen_tx_timeout_task(struct work_struct *work)
         if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
                 goto request_reset;
 
+        rtnl_lock();
         if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
                 /* try to scrub interrupt */
                 netxen_napi_disable(adapter);
 
-                adapter->netdev->trans_start = jiffies;
-
                 netxen_napi_enable(adapter);
 
                 netif_wake_queue(adapter->netdev);
 
                 clear_bit(__NX_RESETTING, &adapter->state);
-                return;
         } else {
                 clear_bit(__NX_RESETTING, &adapter->state);
-                if (!netxen_nic_reset_context(adapter)) {
-                        adapter->netdev->trans_start = jiffies;
-                        return;
+                if (netxen_nic_reset_context(adapter)) {
+                        rtnl_unlock();
+                        goto request_reset;
                 }
-
-                /* context reset failed, fall through for fw reset */
         }
+        adapter->netdev->trans_start = jiffies;
+        rtnl_unlock();
+        return;
 
 request_reset:
         adapter->need_fw_reset = 1;