1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/char/vr41xx_rtc.c b/drivers/char/vr41xx_rtc.c
index 435b30748e23..05a3e3743c1d 100644
--- a/drivers/char/vr41xx_rtc.c
+++ b/drivers/char/vr41xx_rtc.c
@@ -127,7 +127,7 @@ struct resource rtc_resource[2] = {
                 .flags  = IORESOURCE_MEM,       },
 };
 
-#define RTC_NUM_RESOURCES       sizeof(rtc_resource) / sizeof(struct resource)
+#define RTC_NUM_RESOURCES       ARRAY_SIZE(rtc_resource)
 
 static inline unsigned long read_elapsed_second(void)
 {