Commit fd6792bb authored by Alexandre Belloni's avatar Alexandre Belloni

rtc: fix alarm read and set offset

The offset needs to be added after reading the alarm value.

It also needs to be subtracted after the now < alarm test.
Tested-by: default avatarJon Hunter <jonathanh@nvidia.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent ca95ef7c
......@@ -265,8 +265,10 @@ int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
return err;
/* full-function RTCs won't have such missing fields */
if (rtc_valid_tm(&alarm->time) == 0)
if (rtc_valid_tm(&alarm->time) == 0) {
rtc_add_offset(rtc, &alarm->time);
return 0;
}
/* get the "after" timestamp, to detect wrapped fields */
err = rtc_read_time(rtc, &now);
......@@ -409,7 +411,6 @@ static int __rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
if (err)
return err;
rtc_subtract_offset(rtc, &alarm->time);
scheduled = rtc_tm_to_time64(&alarm->time);
/* Make sure we're not setting alarms in the past */
......@@ -426,6 +427,8 @@ static int __rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
* over right here, before we set the alarm.
*/
rtc_subtract_offset(rtc, &alarm->time);
if (!rtc->ops)
err = -ENODEV;
else if (!rtc->ops->set_alarm)
......@@ -467,7 +470,6 @@ int rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
mutex_unlock(&rtc->ops_lock);
rtc_add_offset(rtc, &alarm->time);
return err;
}
EXPORT_SYMBOL_GPL(rtc_set_alarm);
......
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