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cpuidle: mvebu: Fix the CPU PM notifier usage

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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.

Cc: stable@vger.kernel.org
Reported-by: Fulvio Benini <fbf@libero.it>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Gregory CLEMENT 2015-02-26 18:20:48 +01:00 committed by Daniel Lezcano
parent 9eccca0843
commit 43b68879de
1 changed files with 2 additions and 2 deletions
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4
drivers/cpuidle/cpuidle-mvebu-v7.c
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@ -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;
}