staging: comedi: pcl726: tidy up pcl726_ao_insn_read()

Tidy up this function to follow the normal form for analog output
read back functions.

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 2013-09-25 15:36:13 -07:00 • committed by Greg Kroah-Hartman
commit 5ec786764a