be2net: cleanup in case of error in be_open()

This patch adds cleanup code (things like unregistering irq,
disabling napi etc) to be_open() when an error occurs inside the
routine.

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index 54b1427..3225774 100644 (file)
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -1735,6 +1735,44 @@ done:
        adapter->isr_registered = false;
 }
 
+static int be_close(struct net_device *netdev)
+{
+       struct be_adapter *adapter = netdev_priv(netdev);
+       struct be_eq_obj *rx_eq = &adapter->rx_eq;
+       struct be_eq_obj *tx_eq = &adapter->tx_eq;
+       int vec;
+
+       cancel_delayed_work_sync(&adapter->work);
+
+       be_async_mcc_disable(adapter);
+
+       netif_stop_queue(netdev);
+       netif_carrier_off(netdev);
+       adapter->link_up = false;
+
+       be_intr_set(adapter, false);
+
+       if (adapter->msix_enabled) {
+               vec = be_msix_vec_get(adapter, tx_eq->q.id);
+               synchronize_irq(vec);
+               vec = be_msix_vec_get(adapter, rx_eq->q.id);
+               synchronize_irq(vec);
+       } else {
+               synchronize_irq(netdev->irq);
+       }
+       be_irq_unregister(adapter);
+
+       napi_disable(&rx_eq->napi);
+       napi_disable(&tx_eq->napi);
+
+       /* Wait for all pending tx completions to arrive so that
+        * all tx skbs are freed.
+        */
+       be_tx_compl_clean(adapter);
+
+       return 0;
+}
+
 static int be_open(struct net_device *netdev)
 {
        struct be_adapter *adapter = netdev_priv(netdev);
@@ -1765,27 +1803,29 @@ static int be_open(struct net_device *netdev)
        /* Now that interrupts are on we can process async mcc */
        be_async_mcc_enable(adapter);
 
+       schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
+
        status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
                        &link_speed);
        if (status)
-               goto ret_sts;
+               goto err;
        be_link_status_update(adapter, link_up);
 
-       if (be_physfn(adapter))
+       if (be_physfn(adapter)) {
                status = be_vid_config(adapter);
-       if (status)
-               goto ret_sts;
+               if (status)
+                       goto err;
 
-       if (be_physfn(adapter)) {
                status = be_cmd_set_flow_control(adapter,
                                adapter->tx_fc, adapter->rx_fc);
                if (status)
-                       goto ret_sts;
+                       goto err;
        }
 
-       schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
-ret_sts:
-       return status;
+       return 0;
+err:
+       be_close(adapter->netdev);
+       return -EIO;
 }
 
 static int be_setup_wol(struct be_adapter *adapter, bool enable)
@@ -1913,43 +1953,6 @@ static int be_clear(struct be_adapter *adapter)
        return 0;
 }
 
-static int be_close(struct net_device *netdev)
-{
-       struct be_adapter *adapter = netdev_priv(netdev);
-       struct be_eq_obj *rx_eq = &adapter->rx_eq;
-       struct be_eq_obj *tx_eq = &adapter->tx_eq;
-       int vec;
-
-       cancel_delayed_work_sync(&adapter->work);
-
-       be_async_mcc_disable(adapter);
-
-       netif_stop_queue(netdev);
-       netif_carrier_off(netdev);
-       adapter->link_up = false;
-
-       be_intr_set(adapter, false);
-
-       if (adapter->msix_enabled) {
-               vec = be_msix_vec_get(adapter, tx_eq->q.id);
-               synchronize_irq(vec);
-               vec = be_msix_vec_get(adapter, rx_eq->q.id);
-               synchronize_irq(vec);
-       } else {
-               synchronize_irq(netdev->irq);
-       }
-       be_irq_unregister(adapter);
-
-       napi_disable(&rx_eq->napi);
-       napi_disable(&tx_eq->napi);
-
-       /* Wait for all pending tx completions to arrive so that
-        * all tx skbs are freed.
-        */
-       be_tx_compl_clean(adapter);
-
-       return 0;
-}
 
 #define FW_FILE_HDR_SIGN       "ServerEngines Corp. "
 char flash_cookie[2][16] =     {"*** SE FLAS",