diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 72924c8b0696..871afe75ca42 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -302,7 +302,7 @@ int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io,
 
 int rsnd_channel_normalization(int chan)
 {
-	if ((chan > 8) || (chan < 0))
+	if (WARN_ON((chan > 8) || (chan < 0)))
 		return 0;
 
 	/* TDM Extend Mode needs 8ch */