staging: comedi: dt2814: use comedi_fc helpers to validate timer arg (704b0050) · Commits · 戴 / test

Use the comedi_fc helper cfc_check_trigger_arg_is() to validate the trigger argument when the source is TRIG_TIMER. All the arguments are unsigned int, change the local variable to an unsigned int and rename it for aesthetic reasons. 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>

drivers/staging/comedi/drivers/dt2814.c

+4 −5

Original line number	Diff line number	Diff line
		@@ -128,7 +128,7 @@ static int dt2814_ai_cmdtest(struct comedi_device *dev,
		struct comedi_subdevice s, struct comedi_cmd cmd)
		{
		int err = 0;
		int tmp;
		unsigned int arg;

		/* Step 1 : check if triggers are trivially valid */

		@@ -170,10 +170,9 @@ static int dt2814_ai_cmdtest(struct comedi_device *dev,

		/* step 4: fix up any arguments */

		tmp = cmd->scan_begin_arg;
		dt2814_ns_to_timer(&cmd->scan_begin_arg, cmd->flags & TRIG_ROUND_MASK);
		if (tmp != cmd->scan_begin_arg)
		err++;
		arg = cmd->scan_begin_arg;
		dt2814_ns_to_timer(&arg, cmd->flags & TRIG_ROUND_MASK);
		err \|= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);

		if (err)
		return 4;

Admin message