On Wed, 3 Jan 2024, Armin Wolf wrote:
> When wmi_install_notify_handler()/wmi_remove_notify_handler() are
> unable to enable/disable the WMI device, they unconditionally return
> an error to the caller.
> When registering legacy WMI notify handlers, this means that the
> callback remains registered despite wmi_install_notify_handler()
> having returned an error.
> When removing legacy WMI notify handlers, this means that the
> callback is removed despite wmi_remove_notify_handler() having
> returned an error.
>
> Fix this by only warning when the WMI device could not be enabled.
> This behaviour matches the bus-based WMI interface.
>
> Tested on a Dell Inspiron 3505 and a Acer Aspire E1-731.
>
> Fixes: 58f6425eb92f ("WMI: Cater for multiple events with same GUID")
> Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
--
i.
