staging: comedi: amplc_pci230: 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/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 66e74bd..4c9f131 100644 (file)
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -2838,7 +2838,7 @@ static int pci230_attach_common(struct comedi_device *dev,
        if (rc)
                return rc;
 
-       s = dev->subdevices + 0;
+       s = &dev->subdevices[0];
        /* analog input subdevice */
        s->type = COMEDI_SUBD_AI;
        s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_GROUND;
@@ -2855,7 +2855,7 @@ static int pci230_attach_common(struct comedi_device *dev,
                s->do_cmdtest = &pci230_ai_cmdtest;
                s->cancel = pci230_ai_cancel;
        }
-       s = dev->subdevices + 1;
+       s = &dev->subdevices[1];
        /* analog output subdevice */
        if (thisboard->ao_chans > 0) {
                s->type = COMEDI_SUBD_AO;
@@ -2878,7 +2878,7 @@ static int pci230_attach_common(struct comedi_device *dev,
        } else {
                s->type = COMEDI_SUBD_UNUSED;
        }
-       s = dev->subdevices + 2;
+       s = &dev->subdevices[2];
        /* digital i/o subdevice */
        if (thisboard->have_dio) {
                rc = subdev_8255_init(dev, s, NULL,
@@ -2941,7 +2941,7 @@ static void pci230_detach(struct comedi_device *dev)
        struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 
        if (dev->subdevices && thisboard->have_dio)
-               subdev_8255_cleanup(dev, dev->subdevices + 2);
+               subdev_8255_cleanup(dev, &dev->subdevices[2]);
        if (dev->irq)
                free_irq(dev->irq, dev);
        if (pcidev) {