staging: comedi: me_daq: use comedi_range_is_bipolar() helper

Use the helper function to determine if the dac bipolar bit needs
to be set.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2015-10-06 17:23:40 -07:00 • committed by Greg Kroah-Hartman
commit 99104f62f0