diff --git a/drivers/staging/comedi/drivers/ni_labpc_common.c b/drivers/staging/comedi/drivers/ni_labpc_common.c
index 3cd200a6d768..c494c53ef335 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_common.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_common.c
@@ -406,10 +406,10 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
 			    (scan_period + (base_period / 2)) / base_period;
 			break;
 		case CMDF_ROUND_UP:
-			devpriv->divisor_a0 =
-			    (convert_period + (base_period - 1)) / base_period;
-			devpriv->divisor_b1 =
-			    (scan_period + (base_period - 1)) / base_period;
+			devpriv->divisor_a0 = DIV_ROUND_UP(convert_period,
+							   base_period);
+			devpriv->divisor_b1 = DIV_ROUND_UP(scan_period,
+							   base_period);
 			break;
 		case CMDF_ROUND_DOWN:
 			devpriv->divisor_a0 = convert_period / base_period;