The 'adc_mux' is only used in the attach of the board. Remove it
from the private data.

Signed-off-by: H Hartley Sweeten <[email protected]>
Cc: Ian Abbott <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
---
 drivers/staging/comedi/drivers/rti800.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/rti800.c 
b/drivers/staging/comedi/drivers/rti800.c
index 2bc6e8e..8fb8af0 100644
--- a/drivers/staging/comedi/drivers/rti800.c
+++ b/drivers/staging/comedi/drivers/rti800.c
@@ -140,9 +140,6 @@ static const struct rti800_board rti800_boardtypes[] = {
 
 struct rti800_private {
        enum {
-               adc_diff, adc_pseudodiff, adc_singleended
-       } adc_mux;
-       enum {
                adc_bipolar10, adc_bipolar5, adc_unipolar10
        } adc_range;
        enum {
@@ -316,7 +313,6 @@ static int rti800_attach(struct comedi_device *dev, struct 
comedi_devconfig *it)
                return -ENOMEM;
        dev->private = devpriv;
 
-       devpriv->adc_mux = it->options[2];
        devpriv->adc_range = it->options[3];
        devpriv->adc_coding = it->options[4];
        devpriv->dac0_range = it->options[5];
@@ -333,7 +329,7 @@ static int rti800_attach(struct comedi_device *dev, struct 
comedi_devconfig *it)
        /* ai subdevice */
        s->type = COMEDI_SUBD_AI;
        s->subdev_flags = SDF_READABLE | SDF_GROUND;
-       s->n_chan = (devpriv->adc_mux ? 16 : 8);
+       s->n_chan = (it->options[2] ? 16 : 8);
        s->insn_read = rti800_ai_insn_read;
        s->maxdata = 0xfff;
        switch (devpriv->adc_range) {
-- 
1.8.1.4

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