At some point after humans go extinct and robots cotrol the world, dividing he time64_t by 86400 to extract the days will overflow a 32bit integer, leading to incorrect conversion into rtc_time in rtc_time64_to_tm().
Signed-off-by: Sasha Levin <sasha.le...@oracle.com> --- drivers/rtc/rtc-lib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/rtc/rtc-lib.c b/drivers/rtc/rtc-lib.c index e6bfb9c..459cd4d 100644 --- a/drivers/rtc/rtc-lib.c +++ b/drivers/rtc/rtc-lib.c @@ -54,11 +54,11 @@ void rtc_time64_to_tm(time64_t time, struct rtc_time *tm) { unsigned int month, year; unsigned long secs; - int days; + time64_t days; /* time must be positive */ days = div_s64(time, 86400); - secs = time - (unsigned int) days * 86400; + secs = time - days * 86400; /* day of the week, 1970-01-01 was a Thursday */ tm->tm_wday = (days + 4) % 7; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/