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staging: comedi: das800: remove extra divisor calculation call 

The comedi core always calls the (*do_cmdtest) function before it
calls the (*do_cmd) function. The divisors were already calculated
in das800_ai_do_cmdtest(), it is not necessary to calculate them
again in das800_ai_do_cmd().

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>
This commit is contained in:
H Hartley Sweeten 2013-04-22 18:36:11 -07:00 committed by Greg Kroah-Hartman
parent 57d1ebf795
commit 264601c231
1 changed files with 0 additions and 5 deletions
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5
drivers/staging/comedi/drivers/das800.c
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@ -453,11 +453,6 @@ static int das800_ai_do_cmd(struct comedi_device *dev,
case TRIG_TIMER:
conv_bits |= CASC | ITE;
/* set conversion frequency */
i8253_cascade_ns_to_timer_2div(TIMER_BASE, &(devpriv->divisor1),
&(devpriv->divisor2),
&(async->cmd.convert_arg),
async->cmd.
flags & TRIG_ROUND_MASK);
if (das800_set_frequency(dev) < 0) {
comedi_error(dev, "Error setting up counters");
return -1;