ASoC: soc-core: Fix codec->name memory leak

Ensure that the codec->name is freed when unregistering the codec.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/soc-core.c

@@ -3299,6 +3299,7 @@ void snd_soc_unregister_codec(struct device *dev)
 
 	if (codec->reg_cache)
 		kfree(codec->reg_cache);
+	kfree(codec->name);
 	kfree(codec);
 }
 EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);