update_dn_pci_info(np, pci->phb);
if (pci) update_dn_pci_info(np, pci->phb);
static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node){	struct device_node *np = node;	struct pci_dn *pci;	int err = NOTIFY_OK;	switch (action) {	case PSERIES_RECONFIG_ADD:		pci = np->parent->data;		update_dn_pci_info(np, pci->phb);		break;	default:		err = NOTIFY_DONE;		break;	}	return err;}