[alsa-devel] [PATCH 3/6] platform/x86: thinkpad_acpi: Add audio mute LED classdev support

[Takashi Iwai]

On Tue, 27 Nov 2018 00:04:40 +0100,
Andy Shevchenko wrote:
> 
> On Mon, Nov 26, 2018 at 7:13 PM Takashi Iwai <tiwai at suse.de> wrote:
> >
> > In the upcoming change, the binding of audio mute / mic-mute LED
> > controls will be switched with LED trigger.  This patch is the last
> > piece of preparation: adding the audio mute / mic-mute LED class
> > devices to thinkpad_acpi driver.
> >
> > Two devices, tpacpi::mute and tpacpi::micmute, will be added for
> > controlling the mute LED and mic-mute LED, respectively.
> >
> > Also this selects CONFIG_LEDS_TRIGGERS and CONFIG_LEDS_TRIGGERS_AUDIO
> > unconditionally.  Strictly speaking, these aren't 100% mandatory, but
> > leaving these manual selections would lead to a functional regression
> > easily once after converting from the dynamic symbol binding to the
> > LEDs trigger in a later patch.
> 
> > +               if (!ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) {
> 
> ACPI_FAILURE()
> 
> >                         t->state = -ENODEV;
> > +                       continue;
> > +               }
> 
> > +               err = led_classdev_register(&tpacpi_pdev->dev, &mute_led_cdev[i]);
> > +               if (err < 0) {
> 
> > +                       while (--i >= 0)
> 
> Needs { } due to two liner below.
> 
> Might be converted to simple
> 
> while (i--) {
>  ...
> }
> 
> btw.

Both addressed now.  Thanks.


Takashi