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

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 <[email protected]>
CamonZ · Jun 28, 2017 · 1789088 · 1789088
1 parent d94815f
commit 1789088
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
@@ -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);