Re: [PATCH 4.5 128/238] ALSA: hda - Fix missing ELD update at unplugging

From: Paul Bolle
Date: Tue Apr 12 2016 - 14:39:10 EST


On zo, 2016-04-10 at 11:35 -0700, Greg Kroah-Hartman wrote:
> --- a/sound/pci/hda/patch_hdmi.c
> +++ b/sound/pci/hda/patch_hdmi.c
> @@ -1670,11 +1670,10 @@ static void sync_eld_via_acomp(struct hd
> int size;
>
> mutex_lock(&per_pin->lock);
> + eld->monitor_present = false;
> size = snd_hdac_acomp_get_eld(&codec->bus->core, per_pin->pin_nid,
> &eld->monitor_present, eld->eld_buffer,
> ELD_MAX_SIZE);
> - if (size < 0)
> - goto unlock;

This hunk triggers an obviously correct warning:
sound/pci/hda/patch_hdmi.c: In function 'sync_eld_via_acomp':
sound/pci/hda/patch_hdmi.c:1695:2: warning: label 'unlock' defined but not used [-Wunused-label]
unlock:
^

It's trivial to silence this warning for the v4.5 stable build, of
course. But I never saw this warning in my v4.6-rc builds, so it's
possible another patch should also be included in the v4.5 stable tree.
Takashi?

Thanks,


Paul Bolle