staging: comedi: remove boardtype macro in the ni_atmio16d driver

The 'boardtype' 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>

diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
index 4f61453..a0890ee 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ b/drivers/staging/comedi/drivers/ni_atmio16d.c
@@ -110,8 +110,6 @@ struct atmio16_board_t {
        int has_8255;
 };
 
-#define boardtype ((const struct atmio16_board_t *)dev->board_ptr)
-
 /* range structs */
 static const struct comedi_lrange range_atmio16d_ai_10_bipolar = { 4, {
                                                                       BIP_RANGE
@@ -693,6 +691,7 @@ static int atmio16d_dio_insn_config(struct comedi_device *dev,
 static int atmio16d_attach(struct comedi_device *dev,
                           struct comedi_devconfig *it)
 {
+       const struct atmio16_board_t *board = comedi_board(dev);
        unsigned int irq;
        unsigned long iobase;
        int ret;
@@ -708,8 +707,7 @@ static int atmio16d_attach(struct comedi_device *dev,
        }
        dev->iobase = iobase;
 
-       /* board name */
-       dev->board_name = boardtype->name;
+       dev->board_name = board->name;
 
        ret = alloc_subdevices(dev, 4);
        if (ret < 0)
@@ -811,7 +809,7 @@ static int atmio16d_attach(struct comedi_device *dev,
 
        /* 8255 subdevice */
        s++;
-       if (boardtype->has_8255)
+       if (board->has_8255)
                subdev_8255_init(dev, s, NULL, dev->iobase);
        else
                s->type = COMEDI_SUBD_UNUSED;
@@ -831,7 +829,9 @@ static int atmio16d_attach(struct comedi_device *dev,
 
 static void atmio16d_detach(struct comedi_device *dev)
 {
-       if (dev->subdevices && boardtype->has_8255)
+       const struct atmio16_board_t *board = comedi_board(dev);
+
+       if (dev->subdevices && board->has_8255)
                subdev_8255_cleanup(dev, dev->subdevices + 3);
        if (dev->irq)
                free_irq(dev->irq, dev);