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| author | Baolin Wang <baolin.wang@linaro.org> | 2017-12-25 19:10:37 +0800 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-02-13 21:30:28 +0100 |
| commit | 36d46cdb43efea74043e29e2a62b13e9aca31452 (patch) | |
| tree | b7b9dcfd8cb8805f3d2163cccbd2a96ec70c5d05 /drivers/rtc/rtc-goldfish.c | |
| parent | 29a1f599c0cc37004f92ba455d1ccda3db0b6a94 (diff) | |
rtc: Fix overflow when converting time64_t to rtc_time
If we convert one large time values to rtc_time, in the original formula
'days * 86400' can be overflowed in 'unsigned int' type to make the formula
get one incorrect remain seconds value. Thus we can use div_s64_rem()
function to avoid this situation.
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-goldfish.c')
0 files changed, 0 insertions, 0 deletions