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Commit 25f3a5a2 authored by Mark Gross's avatar Mark Gross Committed by Rafael J. Wysocki
Browse files

PM: PM QOS update fix 



This update handles a use case where pm_qos update requests need to
silently fail if the update is being sent to a handle that is NULL.

The problem was that the original pm_qos silently fails when a request
update is passed to a parameter that has not been added to the list yet.
This update restores that behavior.

Signed-off-by: default avatarmarkgross <markgross@thegnar.org>
Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
parent 8f77578c

kernel/pm_qos_params.c

+14 −12
Original line number Diff line number Diff line
@@ -252,6 +252,7 @@ void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, 
	int pending_update = 0;

	s32 temp;



	if (pm_qos_req) { /*guard against callers passing in null */

		spin_lock_irqsave(&pm_qos_lock, flags);

		if (new_value == PM_QOS_DEFAULT_VALUE)

			temp = pm_qos_array[pm_qos_req->pm_qos_class]->default_value;
@@ -266,6 +267,7 @@ void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, 
		if (pending_update)

			update_target(pm_qos_req->pm_qos_class);

	}

}

EXPORT_SYMBOL_GPL(pm_qos_update_request);



/**