diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c
index 7a48b1e..3d7e590 100644
--- a/drivers/hwmon/jz4740-hwmon.c
+++ b/drivers/hwmon/jz4740-hwmon.c
@@ -59,7 +59,7 @@
 {
 	struct jz4740_hwmon *hwmon = dev_get_drvdata(dev);
 	struct completion *completion = &hwmon->read_completion;
-	unsigned long t;
+	long t;
 	unsigned long val;
 	int ret;