--- drivers/pci/pci-stub.c

+++ drivers/pci/pci-stub.c

@@ -54,6 +54,9 @@ static int __init pci_stub_init(void)

subdevice = PCI_ANY_ID, class=0, class_mask=0;

int fields;

+ if (!strlen(id))

+ continue;

+

fields = sscanf(id, "%x:%x:%x:%x:%x:%x",

&vendor, &device, &subvendor, &subdevice,

&class, &class_mask);