diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c
index 44d0174b4d97d1a0e727fb3d606ea68be4e59740..29183ef2b93d2b950243149c6ffa1abcb56be69e 100644
--- a/sound/soc/soc-io.c
+++ b/sound/soc/soc-io.c
@@ -145,10 +145,13 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 		if (!codec->control_data)
 			codec->control_data = dev_get_regmap(codec->dev, NULL);
 
-		ret = regmap_get_val_bytes(codec->control_data);
-		/* Errors are legitimate for non-integer byte multiples */
-		if (ret > 0)
-			codec->val_bytes = ret;
+		if (codec->control_data) {
+			ret = regmap_get_val_bytes(codec->control_data);
+			/* Errors are legitimate for non-integer byte
+			 * multiples */
+			if (ret > 0)
+				codec->val_bytes = ret;
+		}
 		break;
 
 	default: