diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/me4000.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c index c7136c572a8a..c5a677a3d0da 100644 --- a/drivers/staging/comedi/drivers/me4000.c +++ b/drivers/staging/comedi/drivers/me4000.c @@ -452,15 +452,14 @@ static int me4000_ai_insn_read(struct comedi_device *dev, unsigned int *data) { unsigned int chan = CR_CHAN(insn->chanspec); - unsigned int rang = CR_RANGE(insn->chanspec); + unsigned int range = CR_RANGE(insn->chanspec); unsigned int aref = CR_AREF(insn->chanspec); - unsigned int entry = 0; + unsigned int entry; unsigned int tmp; int ret; int i; - entry |= ME4000_AI_LIST_RANGE(rang); - entry |= chan; + entry = chan | ME4000_AI_LIST_RANGE(range); if (aref == AREF_DIFF) { if (!(s->subdev_flags && SDF_DIFF)) { dev_err(dev->class_dev, @@ -468,7 +467,7 @@ static int me4000_ai_insn_read(struct comedi_device *dev, return -EINVAL; } - if (rang == 0 || rang == 1) { + if (!comedi_range_is_bipolar(s, range)) { dev_err(dev->class_dev, "Range must be bipolar when aref = diff\n"); return -EINVAL; |