diff options
| author | H Hartley Sweeten | 2012-09-05 18:48:58 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2012-09-05 20:06:29 -0700 |
| commit | 3f507ce1ac0f7a6f5f205162d5c1db1524dfb162 (patch) | |
| tree | 5028aceb500293fe2a3b3f3f903c670163cf4bfa | |
| parent | 66c5beee8f8de1a952192c8afe4d7708edbaa328 (diff) | |
staging: comedi: ni_atmio16d: 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>
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_atmio16d.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c index 2c78d3dd242a..4108cbfaf29b 100644 --- a/drivers/staging/comedi/drivers/ni_atmio16d.c +++ b/drivers/staging/comedi/drivers/ni_atmio16d.c @@ -234,7 +234,7 @@ static void reset_atmio16d(struct comedi_device *dev) static irqreturn_t atmio16d_interrupt(int irq, void *d) { struct comedi_device *dev = d; - struct comedi_subdevice *s = dev->subdevices + 0; + struct comedi_subdevice *s = &dev->subdevices[0]; comedi_buf_put(s->async, inw(dev->iobase + AD_FIFO_REG)); @@ -724,7 +724,7 @@ static int atmio16d_attach(struct comedi_device *dev, devpriv->dac1_coding = it->options[12]; /* setup sub-devices */ - s = dev->subdevices + 0; + s = &dev->subdevices[0]; dev->read_subdev = s; /* ai subdevice */ s->type = COMEDI_SUBD_AI; @@ -749,7 +749,7 @@ static int atmio16d_attach(struct comedi_device *dev, } /* ao subdevice */ - s++; + s = &dev->subdevices[1]; s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; s->n_chan = 2; @@ -775,7 +775,7 @@ static int atmio16d_attach(struct comedi_device *dev, } /* Digital I/O */ - s++; + s = &dev->subdevices[2]; s->type = COMEDI_SUBD_DIO; s->subdev_flags = SDF_WRITABLE | SDF_READABLE; s->n_chan = 8; @@ -785,7 +785,7 @@ static int atmio16d_attach(struct comedi_device *dev, s->range_table = &range_digital; /* 8255 subdevice */ - s++; + s = &dev->subdevices[3]; if (board->has_8255) subdev_8255_init(dev, s, NULL, dev->iobase); else @@ -793,7 +793,7 @@ static int atmio16d_attach(struct comedi_device *dev, /* don't yet know how to deal with counter/timers */ #if 0 - s++; + s = &dev->subdevices[4]; /* do */ s->type = COMEDI_SUBD_TIMER; s->n_chan = 0; @@ -807,9 +807,12 @@ static int atmio16d_attach(struct comedi_device *dev, static void atmio16d_detach(struct comedi_device *dev) { const struct atmio16_board_t *board = comedi_board(dev); + struct comedi_subdevice *s; - if (dev->subdevices && board->has_8255) - subdev_8255_cleanup(dev, dev->subdevices + 3); + if (dev->subdevices && board->has_8255) { + s = &dev->subdevices[3]; + subdev_8255_cleanup(dev, s); + } if (dev->irq) free_irq(dev->irq, dev); reset_atmio16d(dev); |