if (rpaphp_add_slot(dn)) { printk(KERN_ERR "%s: unable to add hotplug slot %s\n", __FUNCTION__, drc_name); return -EIO; }
static inline int dlpar_add_pci_slot(char *drc_name, struct device_node *dn){	struct pci_dev *dev;	/* Add pci bus */	dev = dlpar_pci_add_bus(dn);	if (!dev) {		printk(KERN_ERR "%s: unable to add bus %s\n", __FUNCTION__,			drc_name);		return -EIO;	}	return 0;}