staging: comedi: cb_pcidas: 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_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 4b6fb88..4dd87c2 100644 (file)
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -1560,7 +1560,7 @@ static int cb_pcidas_attach_pci(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;
@@ -1577,7 +1577,7 @@ static int cb_pcidas_attach_pci(struct comedi_device *dev,
        s->cancel = cb_pcidas_cancel;
 
        /* analog output subdevice */
-       s = dev->subdevices + 1;
+       s = &dev->subdevices[1];
        if (thisboard->ao_nchan) {
                s->type = COMEDI_SUBD_AO;
                s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND;
@@ -1604,14 +1604,14 @@ static int cb_pcidas_attach_pci(struct comedi_device *dev,
        }
 
        /* 8255 */
-       s = dev->subdevices + 2;
+       s = &dev->subdevices[2];
        ret = subdev_8255_init(dev, s, NULL,
                               devpriv->pacer_counter_dio + DIO_8255);
        if (ret)
                return ret;
 
        /*  serial EEPROM, */
-       s = dev->subdevices + 3;
+       s = &dev->subdevices[3];
        s->type = COMEDI_SUBD_MEMORY;
        s->subdev_flags = SDF_READABLE | SDF_INTERNAL;
        s->n_chan = 256;
@@ -1619,7 +1619,7 @@ static int cb_pcidas_attach_pci(struct comedi_device *dev,
        s->insn_read = eeprom_read_insn;
 
        /*  8800 caldac */
-       s = dev->subdevices + 4;
+       s = &dev->subdevices[4];
        s->type = COMEDI_SUBD_CALIB;
        s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
        s->n_chan = NUM_CHANNELS_8800;
@@ -1630,7 +1630,7 @@ static int cb_pcidas_attach_pci(struct comedi_device *dev,
                caldac_8800_write(dev, i, s->maxdata / 2);
 
        /*  trim potentiometer */
-       s = dev->subdevices + 5;
+       s = &dev->subdevices[5];
        s->type = COMEDI_SUBD_CALIB;
        s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
        if (thisboard->trimpot == AD7376) {
@@ -1646,7 +1646,7 @@ static int cb_pcidas_attach_pci(struct comedi_device *dev,
                cb_pcidas_trimpot_write(dev, i, s->maxdata / 2);
 
        /*  dac08 caldac */
-       s = dev->subdevices + 6;
+       s = &dev->subdevices[6];
        if (thisboard->has_dac08) {
                s->type = COMEDI_SUBD_CALIB;
                s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL;
@@ -1688,7 +1688,7 @@ static void cb_pcidas_detach(struct comedi_device *dev)
        if (dev->irq)
                free_irq(dev->irq, dev);
        if (dev->subdevices)
-               subdev_8255_cleanup(dev, dev->subdevices + 2);
+               subdev_8255_cleanup(dev, &dev->subdevices[2]);
        if (pcidev) {
                if (devpriv->s5933_config)
                        comedi_pci_disable(pcidev);