On 7/29/21 4:37 PM, Uwe Kleine-König wrote: > --- a/drivers/pci/xen-pcifront.c > +++ b/drivers/pci/xen-pcifront.c > @@ -599,12 +599,12 @@ static pci_ers_result_t pcifront_common_process(int cmd, > result = PCI_ERS_RESULT_NONE; > > pcidev = pci_get_domain_bus_and_slot(domain, bus, devfn); > - if (!pcidev || !pcidev->driver) { > + pdrv = pci_driver_of_dev(pcidev); > + if (!pcidev || !pdrv) { If pcidev is NULL we are dead by the time we reach 'if' statement. -boris > dev_err(&pdev->xdev->dev, "device or AER driver is NULL\n"); > pci_dev_put(pcidev); > return result; > } > - pdrv = pcidev->driver; >