staging: comedi: aio_aio12_8: 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/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
index c07de3e..8acf60d 100644 (file)
--- a/drivers/staging/comedi/drivers/aio_aio12_8.c
+++ b/drivers/staging/comedi/drivers/aio_aio12_8.c
@@ -221,7 +221,7 @@ static int aio_aio12_8_attach(struct comedi_device *dev,
        if (ret)
                return ret;
 
-       s = dev->subdevices + 0;
+       s = &dev->subdevices[0];
        if (board->ai_nchan) {
                /* Analog input subdevice */
                s->type         = COMEDI_SUBD_AI;
@@ -234,7 +234,7 @@ static int aio_aio12_8_attach(struct comedi_device *dev,
                s->type = COMEDI_SUBD_UNUSED;
        }
 
-       s = dev->subdevices + 1;
+       s = &dev->subdevices[1];
        if (board->ao_nchan) {
                /* Analog output subdevice */
                s->type         = COMEDI_SUBD_AO;
@@ -248,14 +248,14 @@ static int aio_aio12_8_attach(struct comedi_device *dev,
                s->type = COMEDI_SUBD_UNUSED;
        }
 
-       s = dev->subdevices + 2;
+       s = &dev->subdevices[2];
        /* 8255 Digital i/o subdevice */
        iobase = dev->iobase + AIO12_8_8255_BASE_REG;
        ret = subdev_8255_init(dev, s, NULL, iobase);
        if (ret)
                return ret;
 
-       s = dev->subdevices + 3;
+       s = &dev->subdevices[3];
        /* 8254 counter/timer subdevice */
        s->type         = COMEDI_SUBD_UNUSED;
 
@@ -268,7 +268,7 @@ static int aio_aio12_8_attach(struct comedi_device *dev,
 static void aio_aio12_8_detach(struct comedi_device *dev)
 {
        if (dev->subdevices)
-               subdev_8255_cleanup(dev, dev->subdevices + 2);
+               subdev_8255_cleanup(dev, &dev->subdevices[2]);
        if (dev->iobase)
                release_region(dev->iobase, 24);
 }