--- x/drivers/usb/usbip/vhci_sysfs.c +++ y/drivers/usb/usbip/vhci_sysfs.c @@ -76,6 +76,8 @@ static ssize_t status_show_vhci(int pdev } hcd = platform_get_drvdata(pdev); + if (!usb_hcd_is_primary_hcd(hcd)) + return 0; vhci_hcd = hcd_to_vhci_hcd(hcd); vhci = vhci_hcd->vhci;