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intel_idle: Propagate hot plug errors.

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If a cpuidle registration error occurs during the hot plug notifier
callback, we should really inform the hot plug machinery instead of
just ignoring the error.  This patch changes the callback to properly
return on error.

Signed-off-by: Richard Cochran <rcochran@linutronix.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Richard Cochran 2016-04-06 17:00:56 -04:00 committed by Rafael J. Wysocki
parent b69ef2c099
commit 08820546e4
1 changed files with 5 additions and 2 deletions
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7
drivers/idle/intel_idle.c
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@ -818,8 +818,11 @@ static int cpu_hotplug_notify(struct notifier_block *n,
* driver in this case
*/
dev = per_cpu_ptr(intel_idle_cpuidle_devices, hotcpu);
if (!dev->registered)
intel_idle_cpu_init(hotcpu);
if (dev->registered)
break;
if (intel_idle_cpu_init(hotcpu))
return NOTIFY_BAD;
break;
}