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staging: comedi: pcm_common: use cfc_check_trigger_arg_*() helpers

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Use the new helpers in the step 3 tests of comedi_pcm_cmdtest().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-11-13 17:50:32 -07:00 committed by Greg Kroah-Hartman
parent 5f93c88fe7
commit c563065bb1
1 changed files with 6 additions and 28 deletions
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34
drivers/staging/comedi/drivers/pcm_common.c
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@ -29,41 +29,19 @@ int comedi_pcm_cmdtest(struct comedi_device *dev,
if (err)
return 2;
/* step 3: make sure arguments are trivially compatible */
/* Step 3: check if arguments are trivially valid */
/* cmd->start_src == TRIG_NOW || cmd->start_src == TRIG_INT */
if (cmd->start_arg != 0) {
cmd->start_arg = 0;
err++;
}
/* cmd->scan_begin_src == TRIG_EXT */
if (cmd->scan_begin_arg != 0) {
cmd->scan_begin_arg = 0;
err++;
}
/* cmd->convert_src == TRIG_NOW */
if (cmd->convert_arg != 0) {
cmd->convert_arg = 0;
err++;
}
/* cmd->scan_end_src == TRIG_COUNT */
if (cmd->scan_end_arg != cmd->chanlist_len) {
cmd->scan_end_arg = cmd->chanlist_len;
err++;
}
err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
switch (cmd->stop_src) {
case TRIG_COUNT:
/* any count allowed */
break;
case TRIG_NONE:
if (cmd->stop_arg != 0) {
cmd->stop_arg = 0;
err++;
}
err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
break;
default:
break;