if (thisboard->ao_chans > 0) {
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
- s->n_chan = thisboard->ao_chans;;
+ s->n_chan = thisboard->ao_chans;
s->maxdata = (1 << thisboard->ao_bits) - 1;
s->range_table = &pci230_ao_range;
s->insn_write = &pci230_ao_winsn;