diff --git a/drivers/media/platform/rcar-vin/rcar-csi2.c b/drivers/media/platform/rcar-vin/rcar-csi2.c
index a4952711b7b1..d7f560e312d4 100644
--- a/drivers/media/platform/rcar-vin/rcar-csi2.c
+++ b/drivers/media/platform/rcar-vin/rcar-csi2.c
@@ -651,6 +651,8 @@ static int rcsi2_start_receiver(struct rcar_csi2 *priv)
 
 	/* Code is validated in set_fmt. */
 	format = rcsi2_code_to_fmt(priv->mf.code);
+	if (!format)
+		return -EINVAL;
 
 	/*
 	 * Enable all supported CSI-2 channels with virtual channel and