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authorJohn Stultz <john.stultz@linaro.org>2015-05-13 15:13:05 -0700
committerShuah Khan <shuahkh@osg.samsung.com>2015-05-26 15:58:07 -0600
commit61171d0407b537eff299aea2388773b6c760e6eb (patch)
tree017ada2c9badb0e5026c49c5098cb1419a341804 /tools/testing/selftests/timers/alarmtimer-suspend.c
parentkselftests: timers: Ease alarmtimer-suspend unreasonable latency value (diff)
downloadwireguard-linux-61171d0407b537eff299aea2388773b6c760e6eb.tar.xz
wireguard-linux-61171d0407b537eff299aea2388773b6c760e6eb.zip
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>
Diffstat (limited to 'tools/testing/selftests/timers/alarmtimer-suspend.c')
-rw-r--r--tools/testing/selftests/timers/alarmtimer-suspend.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/testing/selftests/timers/alarmtimer-suspend.c b/tools/testing/selftests/timers/alarmtimer-suspend.c
index 13586b68ef51..72cacf5383dd 100644
--- a/tools/testing/selftests/timers/alarmtimer-suspend.c
+++ b/tools/testing/selftests/timers/alarmtimer-suspend.c
@@ -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),