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ALSA: hda - Skip card registration when no codec is found

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It's nonsense to register a card object when no codec is bound on it,
as we don't support the deferred codec binding.  Instead of
registering an empty card object, just skip the registration by
returning an error from azx_codec_configure().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2017-06-28 12:45:34 +02:00
parent d94815f917
commit 17890880bb
1 changed files with 3 additions and 0 deletions
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3
sound/pci/hda/hda_controller.c
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@ -1345,6 +1345,9 @@ int azx_codec_configure(struct azx *chip)
list_for_each_codec_safe(codec, next, &chip->bus) {
snd_hda_codec_configure(codec);
}
if (!azx_bus(chip)->num_codecs)
return -ENODEV;
return 0;
}
EXPORT_SYMBOL_GPL(azx_codec_configure);