From e1d7cf9c9dd7e08390d836e9f9c8b4851c0b1df0 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 5 Sep 2012 18:41:08 -0700 Subject: [PATCH] staging: comedi: dt282x: remove subdevice pointer math Convert the comedi_subdevice access from pointer math to array access. Signed-off-by: H Hartley Sweeten Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/dt282x.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 1f0b40e4bddd..b7c43c84d949 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -312,7 +312,7 @@ static void dt282x_ao_dma_interrupt(struct comedi_device *dev) void *ptr; int size; int i; - struct comedi_subdevice *s = dev->subdevices + 1; + struct comedi_subdevice *s = &dev->subdevices[1]; outw(devpriv->supcsr | DT2821_CLRDMADNE, dev->iobase + DT2821_SUPCSR); @@ -345,7 +345,7 @@ static void dt282x_ai_dma_interrupt(struct comedi_device *dev) int size; int i; int ret; - struct comedi_subdevice *s = dev->subdevices; + struct comedi_subdevice *s = &dev->subdevices[0]; outw(devpriv->supcsr | DT2821_CLRDMADNE, dev->iobase + DT2821_SUPCSR); @@ -457,8 +457,8 @@ static irqreturn_t dt282x_interrupt(int irq, void *d) return IRQ_HANDLED; } - s = dev->subdevices + 0; - s_ao = dev->subdevices + 1; + s = &dev->subdevices[0]; + s_ao = &dev->subdevices[1]; adcsr = inw(dev->iobase + DT2821_ADCSR); dacsr = inw(dev->iobase + DT2821_DACSR); supcsr = inw(dev->iobase + DT2821_SUPCSR); @@ -1275,7 +1275,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret) return ret; - s = dev->subdevices + 0; + s = &dev->subdevices[0]; dev->read_subdev = s; /* ai subdevice */ @@ -1294,7 +1294,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) opt_ai_range_lkup(boardtype.ispgl, it->options[opt_ai_range]); devpriv->ad_2scomp = it->options[opt_ai_twos]; - s++; + s = &dev->subdevices[1]; s->n_chan = boardtype.dachan; if (s->n_chan) { @@ -1320,7 +1320,7 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) s->type = COMEDI_SUBD_UNUSED; } - s++; + s = &dev->subdevices[2]; /* dio subsystem */ s->type = COMEDI_SUBD_DIO; s->subdev_flags = SDF_READABLE | SDF_WRITABLE; -- 2.20.1