Commit 61171d04 authored May 13, 2015 by John Stultz Committed by Shuah Khan May 26, 2015

kselftests: timers: Check _ALARM clockids are supported before suspending



It was reported that the alarmtimer-suspend test hangs on older
systems that don't support _ALARM clockids.

This is due to the fact that we don't check if the timer_create
fails, and thus when we suspend, the system will not programatically
resume.

Fix this by checking the timer_create call for errors.

Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

parent acd5705d

tools/testing/selftests/timers/alarmtimer-suspend.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -152,7 +152,11 @@ int main(void)
		alarm_clock_id++) {

		alarmcount = 0;
		timer_create(alarm_clock_id, &se, &tm1);
		if (timer_create(alarm_clock_id, &se, &tm1) == -1) {
		printf("timer_create failled, %s unspported?\n",
		clockstring(alarm_clock_id));
		break;
		}

		clock_gettime(alarm_clock_id, &start_time);
		printf("Start time (%s): %ld:%ld\n", clockstring(alarm_clock_id),