Commit 9ce9d3fb authored by Gregory CLEMENT's avatar Gregory CLEMENT Committed by Greg Kroah-Hartman

cpuidle: mvebu: Fix the CPU PM notifier usage

commit 43b68879 upstream.

As stated in kernel/cpu_pm.c, "Platform is responsible for ensuring
that cpu_pm_enter is not called twice on the same CPU before
cpu_pm_exit is called.". In the current code in case of failure when
calling mvebu_v7_cpu_suspend, the function cpu_pm_exit() is never
called whereas cpu_pm_enter() was called just before.

This patch moves the cpu_pm_exit() in order to balance the
cpu_pm_enter() calls.
Reported-by: default avatarFulvio Benini <fbf@libero.it>
Signed-off-by: default avatarGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 200f5a5c
......@@ -37,11 +37,11 @@ static int mvebu_v7_enter_idle(struct cpuidle_device *dev,
deepidle = true;
ret = mvebu_v7_cpu_suspend(deepidle);
cpu_pm_exit();
if (ret)
return ret;
cpu_pm_exit();
return index;
}
......
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