diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index dc4bd0423e6ff12a6751e671ace742daa5074ba9..ccef549778e409c7eb3249f1e69cb7b7728c4d58 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -921,7 +921,8 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 			      struct comedi_cmd *cmd)
 {
 	int err = 0;
-	int tmp, divisor1 = 0, divisor2 = 0;
+	int tmp;
+	unsigned int divisor1 = 0, divisor2 = 0;
 
 	/* step 1: make sure trigger sources are trivially valid */