The RTC core is always calling rtc_valid_tm after the read_time callback. It is not necessary to call it just before returning from the callback. Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> --- drivers/rtc/rtc-m48t86.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c index 8d17be1e6650..a9533535c3b7 100644 --- a/drivers/rtc/rtc-m48t86.c +++ b/drivers/rtc/rtc-m48t86.c @@ -100,7 +100,7 @@ static int m48t86_rtc_read_time(struct device *dev, struct rtc_time *tm) if (m48t86_readb(dev, M48T86_HOUR) & 0x80) tm->tm_hour += 12; - return rtc_valid_tm(tm); + return 0; } static int m48t86_rtc_set_time(struct device *dev, struct rtc_time *tm) -- 2.16.1