This member of the private data is set to the "mode" that the ai command
is operating in but nothing uses it. Just remove it.

Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adv_pci1710.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c 
b/drivers/staging/comedi/drivers/adv_pci1710.c
index 6ab78bb..24dcc2e 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -301,7 +301,6 @@ struct pci1710_private {
        char neverending_ai;    /*  we do unlimited AI */
        unsigned int CntrlReg;  /*  Control register */
        unsigned int i8254_osc_base;    /*  frequence of onboard oscilator */
-       unsigned int ai_do;     /*  what do AI? 0=nothing, 1 to 4 mode */
        unsigned int ai_act_scan;       /*  how many scans we finished */
        unsigned int ai_act_chan;       /*  actual position in actual scan */
        unsigned int ai_buf_ptr;        /*  data buffer ptr in samples */
@@ -726,7 +725,6 @@ static int pci171x_ai_cancel(struct comedi_device *dev,
                break;
        }
 
-       devpriv->ai_do = 0;
        devpriv->ai_act_scan = 0;
        s->async->cur_chan = 0;
        devpriv->ai_buf_ptr = 0;
@@ -974,8 +972,6 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct 
comedi_subdevice *s)
        outb(0, dev->iobase + PCI171x_CLRFIFO);
        outb(0, dev->iobase + PCI171x_CLRINT);
 
-       devpriv->ai_do = mode;
-
        devpriv->ai_act_scan = 0;
        s->async->cur_chan = 0;
        devpriv->ai_buf_ptr = 0;
-- 
1.9.2

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