Allow alarm_cancel() on NULL timers

Remove an assert that prevents using alarm_cancel() with NULL
timers.

Bug: 26831803
Change-Id: Ifd1476272b13a3f7fd5a0dbb57ee867cbfe2c2bb

parent d05eb79f

system/osi/src/alarm.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -260,7 +260,8 @@ static void alarm_set_internal(alarm_t *alarm, period_ms_t period,

		void alarm_cancel(alarm_t *alarm) {
		assert(alarms != NULL);
		assert(alarm != NULL);
		if (!alarm)
		return;

		pthread_mutex_lock(&monitor);