devinfo_parents_walk_data_t
devinfo_parents_walk_data_t *dip;
dip = mdb_alloc(sizeof (devinfo_parents_walk_data_t), UM_SLEEP);
mdb_free(dip, sizeof (devinfo_parents_walk_data_t));
devinfo_parents_walk_data_t *dip = wsp->walk_data;
devinfo_parents_walk_data_t *dip = wsp->walk_data;
mdb_free(wsp->walk_data, sizeof (devinfo_parents_walk_data_t));
devinfo_parents_walk_data_t *dip;