staging: comedi: amplc_pci230: remove analog input "empty acquisition" async command

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This driver currently allows a cmd->stop_src == TRIG_COUNT with a cmd->stop_arg
of 0. This causes the (*do_cmd) to immediately 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>

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H Hartley Sweeten 2014-09-09 16:15:43 -07:00 • committed by Greg Kroah-Hartman

parent 6fabddd226

commit df9f5bad21

1 changed files with 3 additions and 8 deletions

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drivers/staging/comedi/drivers/amplc_pci230.c

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