ASoC: core: remove codec from list if registration failed

Current snd_soc_register_codec() adds codec to list, and calls
snd_soc_register_dais().
But, this listed codec should be removed if dais registration
was failed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/soc-core.c

@@ -4096,6 +4096,10 @@ int snd_soc_register_codec(struct device *dev,
 	return 0;
 
 fail_codec_name:
+	mutex_lock(&client_mutex);
+	list_del(&codec->list);
+	mutex_unlock(&client_mutex);
+
 	kfree(codec->name);
 fail_codec:
 	kfree(codec);