Re: [PATCH] cpuidle: Indicate when a device has been unregistered

From: Daniel Lezcano
Date: Wed Apr 06 2016 - 15:00:57 EST


On Tue, Apr 05, 2016 at 02:05:38PM -0500, Dave Gerlach wrote:
> Currently the 'registered' member of the cpuidle_device struct is set
> to 1 during cpuidle_register_device. In this same function there are
> checks to see if the device is already registered to prevent duplicate
> calls to register the device, but this value is never set to 0 even on
> unregister of the device. Because of this, any attempt to call
> cpuidle_register_device after a call to cpuidle_unregister_device will
> fail which shouldn't be the case.
>
> To prevent this, set registered to 0 when the device is unregistered.
>
> Fixes: c878a52d3c7c ("cpuidle: Check if device is already registered")
> Signed-off-by: Dave Gerlach <d-gerlach@xxxxxx>
> ---

Acked-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>