ndi_hp_unregister
rv = ndi_hp_unregister(dip, info->cn_name);
rv = ndi_hp_unregister(dip, info->cn_name);
if (ndi_hp_unregister(dip, slot_p->hs_info.cn_name) != NDI_SUCCESS) {
if (ndi_hp_unregister(dip, slot_p->hs_info.cn_name) !=
ndi_hp_unregister(dev_info_t *dip, char *cn_name);