AHA_ISA_IOSIZE
ia->ia_io[0].ir_size = AHA_ISA_IOSIZE;
if (bus_space_map(iot, ia->ia_io[0].ir_addr, AHA_ISA_IOSIZE, 0, &ioh)) {
if (bus_space_map(iot, ia->ia_io[0].ir_addr, AHA_ISA_IOSIZE, 0, &ioh))
bus_space_unmap(iot, ioh, AHA_ISA_IOSIZE);
if (bus_space_map(iot, iobase, AHA_ISA_IOSIZE, 0, &ioh)) {