diff --git a/drivers/devfreq/arm-memlat-mon.c b/drivers/devfreq/arm-memlat-mon.c
index 2c888327cb4a..25fecfb6d010 100644
--- a/drivers/devfreq/arm-memlat-mon.c
+++ b/drivers/devfreq/arm-memlat-mon.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2014-2017, 2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2014-2018, 2019, The Linux Foundation. All rights reserved.
  */
 
 #define pr_fmt(fmt) "arm-memlat-mon: " fmt
@@ -69,7 +69,7 @@ static unsigned long compute_freq(struct cpu_pmu_stats *cpustats,
 {
 	ktime_t ts;
 	unsigned int diff;
-	unsigned long freq = 0;
+	uint64_t freq = 0;
 
 	ts = ktime_get();
 	diff = ktime_to_us(ktime_sub(ts, cpustats->prev_ts));