[PATCH -next] staging: comedi: dt2814: remove set but not used variables 'data'

[YueHaibing]

drivers/staging/comedi/drivers/dt2814.c:193:6:
 warning: variable data set but not used [-Wunused-but-set-variable]

It is never used, so can be removed.

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/staging/comedi/drivers/dt2814.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt2814.c 
b/drivers/staging/comedi/drivers/dt2814.c
index d2c7157..e7c6787 100644
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ b/drivers/staging/comedi/drivers/dt2814.c
@@ -186,21 +186,17 @@ static int dt2814_ai_cmd(struct comedi_device *dev, 
struct comedi_subdevice *s)
 
 static irqreturn_t dt2814_interrupt(int irq, void *d)
 {
-       int lo, hi;
        struct comedi_device *dev = d;
        struct dt2814_private *devpriv = dev->private;
        struct comedi_subdevice *s = dev->read_subdev;
-       int data;
 
        if (!dev->attached) {
                dev_err(dev->class_dev, "spurious interrupt\n");
                return IRQ_HANDLED;
        }
 
-       hi = inb(dev->iobase + DT2814_DATA);
-       lo = inb(dev->iobase + DT2814_DATA);
-
-       data = (hi << 4) | (lo >> 4);
+       inb(dev->iobase + DT2814_DATA);
+       inb(dev->iobase + DT2814_DATA);
 
        if (!(--devpriv->ntrig)) {
                int i;
-- 
2.7.4