diff --git a/sound/soc/msm/qdsp6v2/msm-pcm-routing-v2.c b/sound/soc/msm/qdsp6v2/msm-pcm-routing-v2.c
index 5c8383456cde98ad0b874748c34b8b0b310f1a87..d363a0e9459445ba0b847eff097f4254a247fb6e 100644
--- a/sound/soc/msm/qdsp6v2/msm-pcm-routing-v2.c
+++ b/sound/soc/msm/qdsp6v2/msm-pcm-routing-v2.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -1848,6 +1848,11 @@ static int msm_routing_ec_ref_rx_put(struct snd_kcontrol *kcontrol,
 	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
 	struct snd_soc_dapm_update *update = NULL;
 
+	if (mux >= e->items) {
+		pr_err("%s: Invalid mux value %d\n", __func__, mux);
+		return -EINVAL;
+	}
+
 	mutex_lock(&routing_lock);
 	switch (ucontrol->value.integer.value[0]) {
 	case 0:
@@ -1996,6 +2001,11 @@ static int msm_routing_ext_ec_put(struct snd_kcontrol *kcontrol,
 		 __func__, msm_route_ext_ec_ref,
 		 ucontrol->value.integer.value[0]);
 
+	if (mux >= e->items) {
+		pr_err("%s: Invalid mux value %d\n", __func__, mux);
+		return -EINVAL;
+	}
+
 	mutex_lock(&routing_lock);
 	switch (ucontrol->value.integer.value[0]) {
 	case EC_PORT_ID_PRIMARY_MI2S_TX: