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 das08_isa_attach(struct comedi_device *dev,
                            struct comedi_devconfig *it)
 {
-       const struct das08_board_struct *thisboard = comedi_board(dev);
+       const struct das08_board_struct *thisboard = dev->board_ptr;
        struct das08_private_struct *devpriv;
        int ret;