staging: comedi: ni_labpc_common: use the cfc_check_trigger_arg_*() helpers

For aesthetics, use the helper functions to check the min/max divisor values.
Remove the const int local variables and open code the values.

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>

diff --git a/drivers/staging/comedi/drivers/ni_labpc_common.c b/drivers/staging/comedi/drivers/ni_labpc_common.c
index 77a7856..b88ee26 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_labpc_common.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_common.c
@@ -368,10 +368,6 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
                             enum scan_mode mode)
 {
        struct labpc_private *devpriv = dev->private;
-       /* max value for 16 bit counter in mode 2 */
-       const int max_counter_value = 0x10000;
-       /* min value for 16 bit counter in mode 2 */
-       const int min_counter_value = 2;
        unsigned int base_period;
        unsigned int scan_period;
        unsigned int convert_period;
@@ -388,11 +384,10 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
                 * clock speed on convert and scan counters)
                 */
                devpriv->divisor_b0 = (scan_period - 1) /
-                   (I8254_OSC_BASE_2MHZ * max_counter_value) + 1;
-               if (devpriv->divisor_b0 < min_counter_value)
-                       devpriv->divisor_b0 = min_counter_value;
-               if (devpriv->divisor_b0 > max_counter_value)
-                       devpriv->divisor_b0 = max_counter_value;
+                   (I8254_OSC_BASE_2MHZ * 0x10000) + 1;
+
+               cfc_check_trigger_arg_min(&devpriv->divisor_b0, 2);
+               cfc_check_trigger_arg_max(&devpriv->divisor_b0, 0x10000);
 
                base_period = I8254_OSC_BASE_2MHZ * devpriv->divisor_b0;
 
@@ -417,14 +412,10 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
                        break;
                }
                /*  make sure a0 and b1 values are acceptable */
-               if (devpriv->divisor_a0 < min_counter_value)
-                       devpriv->divisor_a0 = min_counter_value;
-               if (devpriv->divisor_a0 > max_counter_value)
-                       devpriv->divisor_a0 = max_counter_value;
-               if (devpriv->divisor_b1 < min_counter_value)
-                       devpriv->divisor_b1 = min_counter_value;
-               if (devpriv->divisor_b1 > max_counter_value)
-                       devpriv->divisor_b1 = max_counter_value;
+               cfc_check_trigger_arg_min(&devpriv->divisor_a0, 2);
+               cfc_check_trigger_arg_max(&devpriv->divisor_a0, 0x10000);
+               cfc_check_trigger_arg_min(&devpriv->divisor_b1, 2);
+               cfc_check_trigger_arg_max(&devpriv->divisor_b1, 0x10000);
                /*  write corrected timings to command */
                labpc_set_ai_convert_period(cmd, mode,
                                            base_period * devpriv->divisor_a0);