diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_65xx.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c index 6b118c15b49..b664ce083fc 100644 --- a/drivers/staging/comedi/drivers/ni_65xx.c +++ b/drivers/staging/comedi/drivers/ni_65xx.c @@ -418,15 +418,15 @@ static int ni_65xx_dio_insn_bits(struct comedi_device *dev, return -EINVAL; base_bitfield_channel = CR_CHAN(insn->chanspec); for (j = 0; j < max_ports_per_bitfield; ++j) { + const unsigned port_offset = ni_65xx_port_by_channel(base_bitfield_channel) + j; const unsigned port = - sprivate(s)->base_port + - ni_65xx_port_by_channel(base_bitfield_channel) + j; + sprivate(s)->base_port + port_offset; unsigned base_port_channel; unsigned port_mask, port_data, port_read_bits; int bitshift; if (port >= ni_65xx_total_num_ports(board(dev))) break; - base_port_channel = port * ni_65xx_channels_per_port; + base_port_channel = port_offset * ni_65xx_channels_per_port; port_mask = data[0]; port_data = data[1]; bitshift = base_port_channel - base_bitfield_channel; |