i40e: avoid NULL pointer dereference and recursive errors on early PCI error

[cascardo/linux.git] / drivers / net / ethernet / intel / i40e / i40e_main.c

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 0044c29..ac1faee 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -11400,6 +11400,12 @@ static pci_ers_result_t i40e_pci_error_detected(struct pci_dev *pdev,
 
        dev_info(&pdev->dev, "%s: error %d\n", __func__, error);
 
+       if (!pf) {
+               dev_info(&pdev->dev,
+                        "Cannot recover - error happened during device probe\n");
+               return PCI_ERS_RESULT_DISCONNECT;
+       }
+
        /* shutdown all operations */
        if (!test_bit(__I40E_SUSPENDED, &pf->state)) {
                rtnl_lock();