Re: [PATCH v8 2/3] x86: add support for Huawei WMI hotkeys.
From: Takashi Iwai
Date: Mon Dec 03 2018 - 09:22:25 EST
On Mon, 03 Dec 2018 15:18:54 +0100,
Andy Shevchenko wrote:
>
> On Mon, Dec 3, 2018 at 2:00 PM Takashi Iwai <tiwai@xxxxxxx> wrote:
> > On Fri, 30 Nov 2018 00:57:37 +0100,
> > Ayman Bagabas wrote:
>
> > > +struct huawei_wmi_priv {
> > > + struct input_dev *idev;
> > > + struct led_classdev cdev;
> > > + acpi_handle handle;
> >
> > Is this handle set in anywhere? I couldn't see it in your patch.
> > If it's supposed to be NULL, passing NULL explicitly makes your
> > intention clearer.
>
> Isn't below an answer?
>
> > > + // Skip registering LED subsystem if no ACPI method was found.
> > > + status = acpi_get_handle(priv->handle, "\\_SB.PCI0.LPCB.EC0", &priv->handle);
Oh indeed, but why it passes priv->handle at the first argument...?
thanks,
Takashi