staging: comedi: comedi_parport: 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/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 2dce9df24cb49a30e4dd2c5dc5f43b9943dc9835..c9e40a9fea05b127f889ed618de711b06dadecec 100644 (file)
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -277,7 +277,7 @@ static irqreturn_t parport_interrupt(int irq, void *d)
 {
        struct comedi_device *dev = d;
        struct parport_private *devpriv = dev->private;
-       struct comedi_subdevice *s = dev->subdevices + 3;
+       struct comedi_subdevice *s = &dev->subdevices[3];
 
        if (!devpriv->enable_irq)
                return IRQ_NONE;
@@ -327,7 +327,7 @@ static int parport_attach(struct comedi_device *dev,
                return ret;
        devpriv = dev->private;
 
-       s = dev->subdevices + 0;
+       s = &dev->subdevices[0];
        s->type = COMEDI_SUBD_DIO;
        s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
        s->n_chan = 8;
@@ -336,7 +336,7 @@ static int parport_attach(struct comedi_device *dev,
        s->insn_bits = parport_insn_a;
        s->insn_config = parport_insn_config_a;
 
-       s = dev->subdevices + 1;
+       s = &dev->subdevices[1];
        s->type = COMEDI_SUBD_DI;
        s->subdev_flags = SDF_READABLE;
        s->n_chan = 5;
@@ -344,7 +344,7 @@ static int parport_attach(struct comedi_device *dev,
        s->range_table = &range_digital;
        s->insn_bits = parport_insn_b;
 
-       s = dev->subdevices + 2;
+       s = &dev->subdevices[2];
        s->type = COMEDI_SUBD_DO;
        s->subdev_flags = SDF_WRITABLE;
        s->n_chan = 4;
@@ -352,7 +352,7 @@ static int parport_attach(struct comedi_device *dev,
        s->range_table = &range_digital;
        s->insn_bits = parport_insn_c;
 
-       s = dev->subdevices + 3;
+       s = &dev->subdevices[3];
        if (irq) {
                dev->read_subdev = s;
                s->type = COMEDI_SUBD_DI;