staging: comedi: cb_pcidas64: 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/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index 65cbaabf6456eef2be7c81f6b74e758f5e8dff1a..7168883eed41195f439ac4abead96c39ceed0fac 100644 (file)
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -1348,7 +1348,7 @@ static int setup_subdevices(struct comedi_device *dev)
        if (ret)
                return ret;
 
-       s = dev->subdevices + 0;
+       s = &dev->subdevices[0];
        /* analog input subdevice */
        dev->read_subdev = s;
        s->type = COMEDI_SUBD_AI;
@@ -1379,7 +1379,7 @@ static int setup_subdevices(struct comedi_device *dev)
        }
 
        /* analog output subdevice */
-       s = dev->subdevices + 1;
+       s = &dev->subdevices[1];
        if (board(dev)->ao_nchan) {
                s->type = COMEDI_SUBD_AO;
                s->subdev_flags =
@@ -1401,7 +1401,7 @@ static int setup_subdevices(struct comedi_device *dev)
        }
 
        /*  digital input */
-       s = dev->subdevices + 2;
+       s = &dev->subdevices[2];
        if (board(dev)->layout == LAYOUT_64XX) {
                s->type = COMEDI_SUBD_DI;
                s->subdev_flags = SDF_READABLE;
@@ -1414,7 +1414,7 @@ static int setup_subdevices(struct comedi_device *dev)
 
        /*  digital output */
        if (board(dev)->layout == LAYOUT_64XX) {
-               s = dev->subdevices + 3;
+               s = &dev->subdevices[3];
                s->type = COMEDI_SUBD_DO;
                s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
                s->n_chan = 4;
@@ -1425,7 +1425,7 @@ static int setup_subdevices(struct comedi_device *dev)
                s->type = COMEDI_SUBD_UNUSED;
 
        /* 8255 */
-       s = dev->subdevices + 4;
+       s = &dev->subdevices[4];
        if (board(dev)->has_8255) {
                if (board(dev)->layout == LAYOUT_4020) {
                        dio_8255_iobase =
@@ -1442,7 +1442,7 @@ static int setup_subdevices(struct comedi_device *dev)
                s->type = COMEDI_SUBD_UNUSED;
 
        /*  8 channel dio for 60xx */
-       s = dev->subdevices + 5;
+       s = &dev->subdevices[5];
        if (board(dev)->layout == LAYOUT_60XX) {
                s->type = COMEDI_SUBD_DIO;
                s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
@@ -1455,7 +1455,7 @@ static int setup_subdevices(struct comedi_device *dev)
                s->type = COMEDI_SUBD_UNUSED;
 
        /*  caldac */
-       s = dev->subdevices + 6;
+       s = &dev->subdevices[6];
        s->type = COMEDI_SUBD_CALIB;
        s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
        s->n_chan = 8;
@@ -1469,7 +1469,7 @@ static int setup_subdevices(struct comedi_device *dev)
                caldac_write(dev, i, s->maxdata / 2);
 
        /*  2 channel ad8402 potentiometer */
-       s = dev->subdevices + 7;
+       s = &dev->subdevices[7];
        if (board(dev)->layout == LAYOUT_64XX) {
                s->type = COMEDI_SUBD_CALIB;
                s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
@@ -1483,7 +1483,7 @@ static int setup_subdevices(struct comedi_device *dev)
                s->type = COMEDI_SUBD_UNUSED;
 
        /* serial EEPROM, if present */
-       s = dev->subdevices + 8;
+       s = &dev->subdevices[8];
        if (readl(priv(dev)->plx9080_iobase + PLX_CONTROL_REG) & CTL_EECHK) {
                s->type = COMEDI_SUBD_MEMORY;
                s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
@@ -1494,7 +1494,7 @@ static int setup_subdevices(struct comedi_device *dev)
                s->type = COMEDI_SUBD_UNUSED;
 
        /*  user counter subd XXX */
-       s = dev->subdevices + 9;
+       s = &dev->subdevices[9];
        s->type = COMEDI_SUBD_UNUSED;
 
        return 0;
@@ -1847,7 +1847,7 @@ static void detach(struct comedi_device *dev)
                }
        }
        if (dev->subdevices)
-               subdev_8255_cleanup(dev, dev->subdevices + 4);
+               subdev_8255_cleanup(dev, &dev->subdevices[4]);
        if (pcidev) {
                if (dev->iobase)
                        comedi_pci_disable(pcidev);