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authorRichard Cochran <rcochran@linutronix.de>2016-04-06 17:00:56 -0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-04-07 22:11:02 +0200
commit08820546e4c30c84d0a1f1a49df055e1719c07ea (patch)
treedbecd82adb831a8f7936c90b415de47c0829df79 /drivers/idle
parentb69ef2c099c3e5f11bd5c33a9530d6522f72c9aa (diff)
intel_idle: Propagate hot plug errors.
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>
Diffstat (limited to 'drivers/idle')
-rw-r--r--drivers/idle/intel_idle.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 4418cfa2a4fc..8420ba10a434 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -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;
}

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