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>
 static int dt3k_ai_cmdtest(struct comedi_device *dev,
                           struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
-       const struct dt3k_boardtype *this_board = comedi_board(dev);
+       const struct dt3k_boardtype *this_board = dev->board_ptr;
        int err = 0;
        unsigned int arg;