staging: comedi: dt282x: replace comedi_board() calls

The `comedi_board(dev)` inline function calls just return
`dev->board_ptr`.  Expand the inline function calls.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/dt282x.c

@@ -681,7 +681,7 @@ 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);
+	const struct dt282x_board *board = dev->board_ptr;
 	struct dt282x_private *devpriv = dev->private;
 	int err = 0;
 	unsigned int arg;
@@ -1149,7 +1149,7 @@ static int dt282x_initialize(struct comedi_device *dev)
  */
 static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
-	const struct dt282x_board *board = comedi_board(dev);
+	const struct dt282x_board *board = dev->board_ptr;
 	struct dt282x_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret;