staging: comedi: ni_daq_700: fix return for insn_config function
authorH Hartley Sweeten <hartleys@visionengravers.com>
Fri, 22 Jun 2012 23:35:57 +0000 (16:35 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 23 Jun 2012 03:55:09 +0000 (20:55 -0700)
commit740b48be40761c0345a3c5e7ad077b7e4616bd13
tree9c9771a7ca198d94b2da51f4a607b12516a0e01d
parentc11a1ea71bf2ce9a75a7071c785220a42f4c922a
staging: comedi: ni_daq_700: fix return for insn_config function

The comedi insn_config functions should return < 0 for errors or
the number of data elements used to perform the command, this value
is available as 'insn->n'. Return that instead of the open coded
number to better indicate what the return means.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/ni_daq_700.c