netxen: fix dma watchdog

NX3031 does not require driver to kill dma watchdog.
Signed-off-by: NDhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

drivers/net/netxen/netxen_nic_init.c

@@ -1079,10 +1079,12 @@ int netxen_initialize_adapter_offload(struct netxen_adapter *adapter)
 
 void netxen_free_adapter_offload(struct netxen_adapter *adapter)
 {
-	int i;
+	int i = 100;
+
+	if (!adapter->dummy_dma.addr)
+		return;
 
-	if (adapter->dummy_dma.addr) {
-		i = 100;
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
 		do {
 			if (dma_watchdog_shutdown_request(adapter) == 1)
 				break;
@@ -1090,6 +1092,7 @@ void netxen_free_adapter_offload(struct netxen_adapter *adapter)
 			if (dma_watchdog_shutdown_poll_result(adapter) == 1)
 				break;
 		} while (--i);
+	}
 
 	if (i) {
 		pci_free_consistent(adapter->pdev,
@@ -1101,7 +1104,6 @@ void netxen_free_adapter_offload(struct netxen_adapter *adapter)
 		printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
 				adapter->netdev->name);
 	}
-	}
 }
 
 int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)