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| author | Baolin Wang <baolin.wang@linaro.org> | 2017-12-25 19:10:37 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-03 06:23:19 +0200 |
| commit | ee8f5d476dc91a570cf8ab9babf2b85485f509c1 (patch) | |
| tree | 71231be6bc2c81650aa9e8e8ddd1a8ed8af4dc65 /tools/perf/scripts/python/bin | |
| parent | 0cd08672e0aa514364ff619975067731e39207ab (diff) | |
rtc: Fix overflow when converting time64_t to rtc_time
commit 36d46cdb43efea74043e29e2a62b13e9aca31452 upstream.
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>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions