[PATCH] ASoC: SOF: Update correct LED status at the first time usage of update_mute_led()

[Ranjani Sridharan]

On Thu, 2020-04-30 at 17:11 +0800, Kai-Heng Feng wrote:
> At the first time update_mute_led() gets called, if channels are
> already
> muted, the temp value equals to led_value as 0, skipping the
> following
> LED setting.
> 
> So set led_value to -1 as an uninitialized state, to update the
> correct
> LED status at first time usage.
> 
> Fixes: 5d43001ae436 ("ASoC: SOF: acpi led support for switch
> controls")
> Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>

LGTM, thanks!

Reviewed-by: Ranjani Sridharan <ranjani.sridharan at linux.intel.com>