asoc: update snd info api

Update snd info API and userspace and get codec info.

Change-Id: Ic9cfc89365cf6263a9b1c02403d68e7740bebbeb
Signed-off-by: Meng Wang <mengw@codeaurora.org>

asoc/codecs/wcd938x/wcd938x.c

@@ -2944,19 +2944,26 @@ int wcd938x_info_create_codec_entry(struct snd_info_entry *codec_root,
 		return 0;
 	}
 	card = component->card;
-	priv->entry = snd_info_create_subdir(codec_root->module,
+
+	priv->entry = snd_info_create_module_entry(codec_root->module,
 					     "wcd938x", codec_root);
 	if (!priv->entry) {
 		dev_dbg(component->dev, "%s: failed to create wcd938x entry\n",
 			__func__);
 		return -ENOMEM;
 	}
+	priv->entry->mode = S_IFDIR | 0555;
+	if (snd_info_register(priv->entry) < 0) {
+		snd_info_free_entry(priv->entry);
+		return -ENOMEM;
+	}
 	version_entry = snd_info_create_card_entry(card->snd_card,
 						   "version",
 						   priv->entry);
 	if (!version_entry) {
 		dev_dbg(component->dev, "%s: failed to create wcd938x version entry\n",
 			__func__);
+		snd_info_free_entry(priv->entry);
 		return -ENOMEM;
 	}
 
@@ -2967,6 +2974,7 @@ int wcd938x_info_create_codec_entry(struct snd_info_entry *codec_root,
 
 	if (snd_info_register(version_entry) < 0) {
 		snd_info_free_entry(version_entry);
+		snd_info_free_entry(priv->entry);
 		return -ENOMEM;
 	}
 	priv->version_entry = version_entry;
@@ -2977,6 +2985,8 @@ int wcd938x_info_create_codec_entry(struct snd_info_entry *codec_root,
 	if (!variant_entry) {
 		dev_dbg(component->dev, "%s: failed to create wcd938x variant entry\n",
 			__func__);
+		snd_info_free_entry(version_entry);
+		snd_info_free_entry(priv->entry);
 		return -ENOMEM;
 	}
 
@@ -2987,6 +2997,8 @@ int wcd938x_info_create_codec_entry(struct snd_info_entry *codec_root,
 
 	if (snd_info_register(variant_entry) < 0) {
 		snd_info_free_entry(variant_entry);
+		snd_info_free_entry(version_entry);
+		snd_info_free_entry(priv->entry);
 		return -ENOMEM;
 	}
 	priv->variant_entry = variant_entry;