1 files changed, 16 insertions, 7 deletions

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index a2d72a87cbde..487cd9c4ac0d 100644
--- 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);
+                }
         }
 
 
@@ -3717,7 +3720,8 @@ 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,
@@ -3782,7 +3786,8 @@ 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]);
 }
 
 /**
@@ -3819,7 +3824,8 @@ 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]);
 }
 
 /**
@@ -3874,7 +3880,8 @@ 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]);
 }
 
 /**
@@ -7404,6 +7411,8 @@ 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,