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Commit 61d682eb authored by Maulik Shah's avatar Maulik Shah
Browse files

cpuidle: lpm-levels: Check for valid pointer during hotplug notifications 



get_cpu_device() can return NULL. Add valid pointer check during hotplug
notifications.

Change-Id: I28234ed609fa45a770bb01203f7b5523532088e7
Signed-off-by: default avatarMaulik Shah <mkshah@codeaurora.org>
parent 3b62fcac

drivers/cpuidle/lpm-levels.c

+6 −0
Original line number Diff line number Diff line
@@ -161,6 +161,9 @@ static int lpm_offline_cpu(unsigned int cpu) 
{

	struct device *dev = get_cpu_device(cpu);



	if (!dev)

		return 0;



	dev_pm_qos_remove_notifier(dev, &dev_pm_qos_nb[cpu],

				   DEV_PM_QOS_RESUME_LATENCY);

	return 0;
@@ -170,6 +173,9 @@ static int lpm_online_cpu(unsigned int cpu) 
{

	struct device *dev = get_cpu_device(cpu);



	if (!dev)

		return 0;



	dev_pm_qos_add_notifier(dev, &dev_pm_qos_nb[cpu],

				DEV_PM_QOS_RESUME_LATENCY);

	return 0;