tree 3a641e9c87e71908ca6ca8c7d22cf6c18bc19fab
parent 103e280141ecd19b429567af9e9931817dfacd2a
author H Hartley Sweeten <hsweeten@visionengravers.com> 1410304535 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1410471320 -0700

staging: comedi: amplc_dio200_common: remove "empty acquisition" async command

This driver currently allows a cmd->stop_src == TRIG_COUNT with a cmd->stop_arg
of 0. This causes the (*do_cmd) to immediatelt generate a COMEDI_CB_EOA event
without acquiring any data.

This "empty acquisition" async command is not really useful. Validate that the
cmd->stop_arg is >= 1 in the (*do_cmdtest) and remove the "empty acquisition"
code.

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>