asoc: codecs: Fix Bolero and WSA out-of-range variables

Found potential issues relating to uninitialized or out-of-bounds variables
present in codec drivers. Place checks to ensure proper ranges are used.

Change-Id: Ib68cba2413788a57237f1f18fc5ce5fb5c6bfb0a
Signed-off-by: Matthew Rice <[email protected]>

asoc/codecs/lpass-cdc/lpass-cdc-wsa-macro.c

@@ -1584,9 +1584,9 @@ static int lpass_cdc_wsa_macro_config_softclip(struct snd_soc_component *compone
 static int lpass_cdc_was_macro_config_pbr(struct snd_soc_component *component,
 					  int path, int event)
 {
-	u16 reg1, reg2, reg3;
 	struct device *wsa_dev = NULL;
 	struct lpass_cdc_wsa_macro_priv *wsa_priv = NULL;
+	u16 reg1 = 0, reg2 = 0, reg3 = 0;
 	int softclip_path = 0;
 
 	if (!lpass_cdc_wsa_macro_get_data(component, &wsa_dev, &wsa_priv, __func__))
@@ -1605,7 +1605,7 @@ static int lpass_cdc_was_macro_config_pbr(struct snd_soc_component *component,
 	}
 	if (!wsa_priv->pbr_enable || wsa_priv->wsa_bat_cfg[path] >= EXT_1S ||
 	    wsa_priv->wsa_sys_gain[path * 2] > G_12_DB ||
-	    wsa_priv->wsa_spkrrecv)
+	    wsa_priv->wsa_spkrrecv || !reg1 || !reg2 || !reg3)
 		return 0;
 
 	if (SND_SOC_DAPM_EVENT_ON(event)) {

asoc/codecs/wsa884x/wsa884x.c

@@ -758,7 +758,9 @@ static int wsa_dev_mode_put(struct snd_kcontrol *kcontrol,
 	dev_dbg(component->dev, "%s: Dev Mode current: %d, new: %d  = %ld\n",
 		__func__, wsa884x->dev_mode, dev_mode);
 
-	if (dev_mode >= SPEAKER && dev_mode <= RECEIVER) {
+	/* Check if input parameter is in range */
+	if ((wsa884x->dev_mode + (wsa884x->dev_index - 1) * 2) <
+		(MAX_DEV_MODE * 2)) {
 		wsa884x->dev_mode =  dev_mode;
 		wsa884x->system_gain = wsa884x->sys_gains[
 			wsa884x->dev_mode + (wsa884x->dev_index - 1) * 2];