diff options
| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2012-06-13 15:42:39 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-13 17:19:16 -0700 |
| commit | f218d9f57b472848da34beac3e8097b054dcb2fe (patch) | |
| tree | 66bea73f5e90a38ae7dd6cee6f35da1c92a9466c | |
| parent | e64fb55b1a519a7d0fda51f40ab668830d6475ac (diff) | |
staging: comedi: 8255: use a local variable for the iobase
To improve readability, use a locale variable to hold the 8255's
private iobase value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/comedi/drivers/8255.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c index f6ea49335bb4..1f4b24c9ed85 100644 --- a/drivers/staging/comedi/drivers/8255.c +++ b/drivers/staging/comedi/drivers/8255.c @@ -106,10 +106,11 @@ void subdev_8255_interrupt(struct comedi_device *dev, struct comedi_subdevice *s) { struct subdev_8255_private *spriv = s->private; + unsigned long iobase = spriv->iobase; short d; - d = spriv->io(0, _8255_DATA, 0, spriv->iobase); - d |= (spriv->io(0, _8255_DATA + 1, 0, spriv->iobase) << 8); + d = spriv->io(0, _8255_DATA, 0, iobase); + d |= (spriv->io(0, _8255_DATA + 1, 0, iobase) << 8); comedi_buf_put(s->async, d); s->async->events |= COMEDI_CB_EOS; @@ -133,25 +134,25 @@ static int subdev_8255_insn(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { struct subdev_8255_private *spriv = s->private; + unsigned long iobase = spriv->iobase; if (data[0]) { s->state &= ~data[0]; s->state |= (data[0] & data[1]); if (data[0] & 0xff) - spriv->io(1, _8255_DATA, s->state & 0xff, - spriv->iobase); + spriv->io(1, _8255_DATA, s->state & 0xff, iobase); if (data[0] & 0xff00) spriv->io(1, _8255_DATA + 1, - (s->state >> 8) & 0xff, spriv->iobase); + (s->state >> 8) & 0xff, iobase); if (data[0] & 0xff0000) spriv->io(1, _8255_DATA + 2, - (s->state >> 16) & 0xff, spriv->iobase); + (s->state >> 16) & 0xff, iobase); } - data[1] = spriv->io(0, _8255_DATA, 0, spriv->iobase); - data[1] |= (spriv->io(0, _8255_DATA + 1, 0, spriv->iobase) << 8); - data[1] |= (spriv->io(0, _8255_DATA + 2, 0, spriv->iobase) << 16); + data[1] = spriv->io(0, _8255_DATA, 0, iobase); + data[1] |= (spriv->io(0, _8255_DATA + 1, 0, iobase) << 8); + data[1] |= (spriv->io(0, _8255_DATA + 2, 0, iobase) << 16); return 2; } @@ -159,6 +160,7 @@ static int subdev_8255_insn(struct comedi_device *dev, static void do_config(struct comedi_device *dev, struct comedi_subdevice *s) { struct subdev_8255_private *spriv = s->private; + unsigned long iobase = spriv->iobase; int config; config = CR_CW; @@ -171,7 +173,8 @@ static void do_config(struct comedi_device *dev, struct comedi_subdevice *s) config |= CR_C_LO_IO; if (!(s->io_bits & 0xf00000)) config |= CR_C_HI_IO; - spriv->io(1, _8255_CR, config, spriv->iobase); + + spriv->io(1, _8255_CR, config, iobase); } static int subdev_8255_insn_config(struct comedi_device *dev, |