explicitly check if azalia_codec_find_defdac didn't find a dac instead of possibly matching a nonexistent hp or spkr dac.
explicitly check if azalia_codec_find_defdac didn't find a dac instead of
possibly matching a nonexistent hp or spkr dac.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars