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rtc: Modify rtc_hctosys() to address y2038 issues

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rtc_hctosys() has a number of y2038 issues.

This patch resolves them by:
- Replace rtc_tm_to_time() with y2038-safe rtc_tm_to_time64()
- Replace do_settimeofday() with y2038-safe do_settimeofday64()

After this patch, it should not have any remaining y2038 issues.

Cc: pang.xunlei <pang.xunlei@linaro.org>
Cc: Arnd Bergmann <arnd.bergmann@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Xunlei Pang 2015-01-22 02:31:53 +00:00 committed by John Stultz
parent 4ec2364f49
commit a6d6e1c879
1 changed files with 5 additions and 5 deletions
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10
drivers/rtc/hctosys.c
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@ -26,7 +26,7 @@ static int __init rtc_hctosys(void)
{
int err = -ENODEV;
struct rtc_time tm;
struct timespec tv = {
struct timespec64 tv64 = {
.tv_nsec = NSEC_PER_SEC >> 1,
};
struct rtc_device *rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
@ -52,16 +52,16 @@ static int __init rtc_hctosys(void)
goto err_invalid;
}
rtc_tm_to_time(&tm, &tv.tv_sec);
tv64.tv_sec = rtc_tm_to_time64(&tm);
err = do_settimeofday(&tv);
err = do_settimeofday64(&tv64);
dev_info(rtc->dev.parent,
"setting system clock to "
"%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
"%d-%02d-%02d %02d:%02d:%02d UTC (%lld)\n",
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec,
(unsigned int) tv.tv_sec);
(long long) tv64.tv_sec);
err_invalid:
err_read: