From f18046c50d2bb726538a83dfb035bfa592779e9c Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 28 Feb 2018 22:50:53 +0100 Subject: [PATCH] rtc: fix rtc_time64_to_tm for 3477 The current correction for leap years will fail in 3477. 3476-12-31 being 3477-01-00 because this is 366 leap years after 1970 and 3477 isn't a leap year. Fix that by looping over until days is positive or zero. Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-lib.c b/drivers/rtc/rtc-lib.c index ad5bb21908e5..4a3c0f3aab14 100644 --- a/drivers/rtc/rtc-lib.c +++ b/drivers/rtc/rtc-lib.c @@ -65,7 +65,7 @@ void rtc_time64_to_tm(time64_t time, struct rtc_time *tm) days -= (year - 1970) * 365 + LEAPS_THRU_END_OF(year - 1) - LEAPS_THRU_END_OF(1970 - 1); - if (days < 0) { + while (days < 0) { year -= 1; days += 365 + is_leap_year(year); } -- 2.11.0