staging: comedi: dt2811: remove subdevice pointer math

Convert the comedi_subdevice access from pointer math to array
access.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
index 290b933..d3a8c1a 100644 (file)
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -510,7 +510,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
                break;
        }
 
-       s = dev->subdevices + 0;
+       s = &dev->subdevices[0];
        /* initialize the ADC subdevice */
        s->type = COMEDI_SUBD_AI;
        s->subdev_flags = SDF_READABLE | SDF_GROUND;
@@ -530,7 +530,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
                break;
        }
 
-       s = dev->subdevices + 1;
+       s = &dev->subdevices[1];
        /* ao subdevice */
        s->type = COMEDI_SUBD_AO;
        s->subdev_flags = SDF_WRITABLE;
@@ -542,7 +542,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
        devpriv->range_type_list[0] = dac_range_types[devpriv->dac_range[0]];
        devpriv->range_type_list[1] = dac_range_types[devpriv->dac_range[1]];
 
-       s = dev->subdevices + 2;
+       s = &dev->subdevices[2];
        /* di subdevice */
        s->type = COMEDI_SUBD_DI;
        s->subdev_flags = SDF_READABLE;
@@ -551,7 +551,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
        s->maxdata = 1;
        s->range_table = &range_digital;
 
-       s = dev->subdevices + 3;
+       s = &dev->subdevices[3];
        /* do subdevice */
        s->type = COMEDI_SUBD_DO;
        s->subdev_flags = SDF_WRITABLE;