From 542a92093ea9801c9016a9b390dfd223e0bcb3cf Mon Sep 17 00:00:00 2001 From: Gregory CLEMENT Date: Thu, 26 Feb 2015 18:20:48 +0100 Subject: cpuidle: mvebu: Fix the CPU PM notifier usage [ Upstream commit 43b68879de27b1993518687fbc6013da80cdcbfe ] 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 Signed-off-by: Gregory CLEMENT Signed-off-by: Daniel Lezcano Signed-off-by: Sasha Levin --- drivers/cpuidle/cpuidle-mvebu-v7.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/cpuidle') diff --git a/drivers/cpuidle/cpuidle-mvebu-v7.c b/drivers/cpuidle/cpuidle-mvebu-v7.c index 45371bb16214..6066d790fd0e 100644 --- a/drivers/cpuidle/cpuidle-mvebu-v7.c +++ b/drivers/cpuidle/cpuidle-mvebu-v7.c @@ -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; } -- cgit v1.2.3