sleep: round up when calculating RTC sleep time

Paranoia: this way we know that when we wake up all timers are
definitely equal or ahead of what we expect them to be.

diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c
index 91b52445e2904d89b72417436261c95ea7117f43..bd4c104ad07c61f1b804b514487a22ed7d55ec49 100644 (file)
--- a/src/sleep/sleep.c
+++ b/src/sleep/sleep.c
@@ -235,7 +235,7 @@ static int execute_s2h(usec_t hibernate_delay_sec) {
         if (r < 0)
                 return r;
 
-        wake_time = original_time + (hibernate_delay_sec / USEC_PER_SEC);
+        wake_time = original_time + DIV_ROUND_UP(hibernate_delay_sec, USEC_PER_SEC);
         r = rtc_write_wake_alarm(wake_time);
         if (r < 0)
                 return r;