diff options
| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2018-12-01 23:14:10 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-12-01 18:03:14 -0500 |
| commit | 952061352acfd24034e6990b6b7d32cded020c0a (patch) | |
| tree | 222547f2a356f4d7cba9ae401101a3635cf62583 /drivers/rtc | |
| parent | c1d6e0bbfdb50f9041a42bd4ce3af809a09ff7d1 (diff) | |
drivers: rtc: correctly convert seconds to time structure
Variable 'days' must be defined as signed int. Otherwise the conversion
fails for some dates, e.g. 2004-08-25. Cf function rtc_time64_to_tm() in
the Linux kernel source.
Fixes: 992c1db45591 "drivers: rtc: resolve year 2038 problem in rtc_to_tm"
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-lib.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-lib.c b/drivers/rtc/rtc-lib.c index b8a7a8b2d3..6528ddfebb 100644 --- a/drivers/rtc/rtc-lib.c +++ b/drivers/rtc/rtc-lib.c @@ -31,10 +31,14 @@ static int rtc_month_days(unsigned int month, unsigned int year) /* * rtc_to_tm - Converts u64 to rtc_time. * Convert seconds since 01-01-1970 00:00:00 to Gregorian date. + * + * This function is copied from rtc_time64_to_tm() in the Linux kernel. + * But in U-Boot January is month 1 and we do not subtract 1900 from the year. */ void rtc_to_tm(u64 time, struct rtc_time *tm) { - unsigned int month, year, secs, days; + unsigned int month, year, secs; + int days; days = div_u64_rem(time, 86400, &secs); |