Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[cascardo/linux.git] / drivers / net / ethernet / intel / igb / igb_main.c

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index b0e12e7..3c02216 100644 (file)
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1012,7 +1012,8 @@ static void igb_free_q_vector(struct igb_adapter *adapter, int v_idx)
        /* igb_get_stats64() might access the rings on this vector,
         * we must wait a grace period before freeing it.
         */
-       kfree_rcu(q_vector, rcu);
+       if (q_vector)
+               kfree_rcu(q_vector, rcu);
 }
 
 /**
@@ -1792,8 +1793,10 @@ void igb_down(struct igb_adapter *adapter)
        adapter->flags &= ~IGB_FLAG_NEED_LINK_UPDATE;
 
        for (i = 0; i < adapter->num_q_vectors; i++) {
-               napi_synchronize(&(adapter->q_vector[i]->napi));
-               napi_disable(&(adapter->q_vector[i]->napi));
+               if (adapter->q_vector[i]) {
+                       napi_synchronize(&adapter->q_vector[i]->napi);
+                       napi_disable(&adapter->q_vector[i]->napi);
+               }
        }
 
 
@@ -3714,7 +3717,8 @@ static void igb_free_all_tx_resources(struct igb_adapter *adapter)
        int i;
 
        for (i = 0; i < adapter->num_tx_queues; i++)
-               igb_free_tx_resources(adapter->tx_ring[i]);
+               if (adapter->tx_ring[i])
+                       igb_free_tx_resources(adapter->tx_ring[i]);
 }
 
 void igb_unmap_and_free_tx_resource(struct igb_ring *ring,
@@ -3779,7 +3783,8 @@ static void igb_clean_all_tx_rings(struct igb_adapter *adapter)
        int i;
 
        for (i = 0; i < adapter->num_tx_queues; i++)
-               igb_clean_tx_ring(adapter->tx_ring[i]);
+               if (adapter->tx_ring[i])
+                       igb_clean_tx_ring(adapter->tx_ring[i]);
 }
 
 /**
@@ -3816,7 +3821,8 @@ static void igb_free_all_rx_resources(struct igb_adapter *adapter)
        int i;
 
        for (i = 0; i < adapter->num_rx_queues; i++)
-               igb_free_rx_resources(adapter->rx_ring[i]);
+               if (adapter->rx_ring[i])
+                       igb_free_rx_resources(adapter->rx_ring[i]);
 }
 
 /**
@@ -3871,7 +3877,8 @@ static void igb_clean_all_rx_rings(struct igb_adapter *adapter)
        int i;
 
        for (i = 0; i < adapter->num_rx_queues; i++)
-               igb_clean_rx_ring(adapter->rx_ring[i]);
+               if (adapter->rx_ring[i])
+                       igb_clean_rx_ring(adapter->rx_ring[i]);
 }
 
 /**
@@ -7401,6 +7408,8 @@ static int igb_resume(struct device *dev)
        pci_restore_state(pdev);
        pci_save_state(pdev);
 
+       if (!pci_device_is_present(pdev))
+               return -ENODEV;
        err = pci_enable_device_mem(pdev);
        if (err) {
                dev_err(&pdev->dev,