From abceaa9cded5f059f8c3b3b6f32730084fe5e39f Mon Sep 17 00:00:00 2001 From: Xunlei Pang Date: Mon, 31 Aug 2015 11:34:05 +0800 Subject: cpuidle/coupled: Add sanity check for safe_state_index Since we are using cpuidle_driver::safe_state_index directly as the target state index, it is better to add the sanity check at the point of registering the driver. Signed-off-by: Xunlei Pang Signed-off-by: Rafael J. Wysocki --- drivers/cpuidle/driver.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/cpuidle/driver.c') diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c index 5db147859b90..389ade4572be 100644 --- a/drivers/cpuidle/driver.c +++ b/drivers/cpuidle/driver.c @@ -227,6 +227,10 @@ static int __cpuidle_register_driver(struct cpuidle_driver *drv) if (!drv || !drv->state_count) return -EINVAL; + ret = cpuidle_coupled_state_verify(drv); + if (ret) + return ret; + if (cpuidle_disabled()) return -ENODEV; -- cgit v1.2.3