add_return_token
add_return_token((caddr_t *)&ad, tad->tad_scid, -1, error);
add_return_token((caddr_t *)&ad, tad->tad_scid, 0, rv);
add_return_token((caddr_t *)&ad, 0, error, 0);
add_return_token((caddr_t *)&(u_ad), tad->tad_scid, 0, 0);
static void add_return_token(caddr_t *, unsigned int scid, int err, int rval);
add_return_token((caddr_t *)&(ad), tad->tad_scid, 0, 0);
add_return_token((caddr_t *)&(u_ad), tad->tad_scid, 0, 0);