diff options
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 23 |
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, |