ALSA: hda: fix mute led polarity for HP laptops with buggy BIOS
Some HP laptop models do not have a properly filled OEM string used to set the gpio and polarity of the mute led. Make the mute led configuration work for this case. Signed-off-by: NGustavo Maciel Dias Vieira <gustavo@sagui.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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