diff options
| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2012-05-22 16:33:51 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-04 20:30:05 -0700 |
| commit | 061319698271bc80155cf3a67f0d5afed4024705 (patch) | |
| tree | 8188e6af99e36521ac04a9afccd3d0112b2c592a | |
| parent | 75b9ad9e902a51edc90cfcb4dd84c53683554de2 (diff) | |
staging: comedi: remove this_board macro in the dt282x driver
The 'this_board' macro depends on having a local variable with
a magic name. The CodingStyle document suggests not doing this
to avoid confusion. Remove the macro and use the comedi_board()
inline helper to get the dev->board_ptr information.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/comedi/drivers/dt282x.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 736d8facaee8..eefda3c064d3 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -221,8 +221,6 @@ struct dt282x_board { int dabits; }; -#define this_board ((const struct dt282x_board *)dev->board_ptr) - struct dt282x_private { int ad_2scomp; /* we have 2's comp jumper set */ int da0_2scomp; /* same, for DAC0 */ @@ -580,6 +578,7 @@ static int dt282x_ai_insn_read(struct comedi_device *dev, static int dt282x_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + const struct dt282x_board *board = comedi_board(dev); int err = 0; int tmp; @@ -658,8 +657,8 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev, cmd->convert_arg = SLOWEST_TIMER; err++; } - if (cmd->convert_arg < this_board->ai_speed) { - cmd->convert_arg = this_board->ai_speed; + if (cmd->convert_arg < board->ai_speed) { + cmd->convert_arg = board->ai_speed; err++; } if (cmd->scan_end_arg != cmd->chanlist_len) { @@ -694,6 +693,7 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev, static int dt282x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + const struct dt282x_board *board = comedi_board(dev); struct comedi_cmd *cmd = &s->async->cmd; int timer; @@ -706,8 +706,8 @@ static int dt282x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) dt282x_disable_dma(dev); - if (cmd->convert_arg < this_board->ai_speed) - cmd->convert_arg = this_board->ai_speed; + if (cmd->convert_arg < board->ai_speed) + cmd->convert_arg = board->ai_speed; timer = dt282x_ns_to_timer(&cmd->convert_arg, TRIG_ROUND_NEAREST); outw(timer, dev->iobase + DT2821_TMRCTR); @@ -1176,12 +1176,13 @@ static int dt282x_grab_dma(struct comedi_device *dev, int dma1, int dma2) */ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + const struct dt282x_board *board = comedi_board(dev); int i, irq; int ret; struct comedi_subdevice *s; unsigned long iobase; - dev->board_name = this_board->name; + dev->board_name = board->name; iobase = it->options[opt_iobase]; if (!iobase) |