diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c
index 7c045cffa9ff64ae9e2e1e2a7c9f0ce75b7b9c18..f981287d582b76a4a68a11246451e37b9a60c352 100644
--- a/drivers/rtc/rtc-m48t86.c
+++ b/drivers/rtc/rtc-m48t86.c
@@ -77,7 +77,7 @@ static int m48t86_rtc_read_time(struct device *dev, struct rtc_time *tm)
 		if (ops->readbyte(M48T86_REG_HOUR) & 0x80)
 			tm->tm_hour += 12;
 
-	return 0;
+	return rtc_valid_tm(tm);
 }
 
 static int m48t86_rtc_set_time(struct device *dev, struct rtc_time *tm)