diff options
Diffstat (limited to 'drivers/staging/comedi/range.c')
| -rw-r--r-- | drivers/staging/comedi/range.c | 36 |
1 files changed, 1 insertions, 35 deletions
diff --git a/drivers/staging/comedi/range.c b/drivers/staging/comedi/range.c index b6849545b810..9a1dc56f21d1 100644 --- a/drivers/staging/comedi/range.c +++ b/drivers/staging/comedi/range.c @@ -97,39 +97,6 @@ int do_rangeinfo_ioctl(struct comedi_device *dev, return 0; } -static int aref_invalid(struct comedi_subdevice *s, unsigned int chanspec) -{ - unsigned int aref; - - /* disable reporting invalid arefs... maybe someday */ - return 0; - - aref = CR_AREF(chanspec); - switch (aref) { - case AREF_DIFF: - if (s->subdev_flags & SDF_DIFF) - return 0; - break; - case AREF_COMMON: - if (s->subdev_flags & SDF_COMMON) - return 0; - break; - case AREF_GROUND: - if (s->subdev_flags & SDF_GROUND) - return 0; - break; - case AREF_OTHER: - if (s->subdev_flags & SDF_OTHER) - return 0; - break; - default: - break; - } - dev_dbg(s->device->class_dev, "subdevice does not support aref %i", - aref); - return 1; -} - /** * comedi_check_chanlist() - Validate each element in a chanlist. * @s: comedi_subdevice struct @@ -153,8 +120,7 @@ int comedi_check_chanlist(struct comedi_subdevice *s, int n, else range_len = 0; if (chan >= s->n_chan || - CR_RANGE(chanspec) >= range_len || - aref_invalid(s, chanspec)) { + CR_RANGE(chanspec) >= range_len) { dev_warn(dev->class_dev, "bad chanlist[%d]=0x%08x chan=%d range length=%d\n", i, chanspec, chan, range_len); |