staging: comedi: dt2814: use dev->read_subdev

Use the dev->read_subdev that was setup in the device attach instead
of accessing the dev->subdevices array directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c
index e52d22e..abad6e4 100644 (file)
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ b/drivers/staging/comedi/drivers/dt2814.c
@@ -197,7 +197,7 @@ 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;
+       struct comedi_subdevice *s = dev->read_subdev;
        int data;
 
        if (!dev->attached) {
@@ -205,8 +205,6 @@ static irqreturn_t dt2814_interrupt(int irq, void *d)
                return IRQ_HANDLED;
        }
 
-       s = &dev->subdevices[0];
-
        hi = inb(dev->iobase + DT2814_DATA);
        lo = inb(dev->iobase + DT2814_DATA);