diff --git a/hal/msm8916/platform.c b/hal/msm8916/platform.c
index e74353e..9db6df6 100644
--- a/hal/msm8916/platform.c
+++ b/hal/msm8916/platform.c
@@ -2722,6 +2722,17 @@
     return my_data;
 }
 
+void platform_release_acdb_metainfo_key(void *platform)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct listnode *node, *tempnode;
+
+    list_for_each_safe(node, tempnode, &my_data->acdb_meta_key_list) {
+        list_remove(node);
+        free(node_to_item(node, struct meta_key_list, list));
+    }
+}
+
 void platform_deinit(void *platform)
 {
     struct platform_data *my_data = (struct platform_data *)platform;
@@ -2770,6 +2781,28 @@
         my_data->adev->mixer = NULL;
     }
 
+    int32_t idx;
+
+    for (idx = 0; idx < MAX_CODEC_BACKENDS; idx++) {
+         if (my_data->current_backend_cfg[idx].bitwidth_mixer_ctl) {
+             free(my_data->current_backend_cfg[idx].bitwidth_mixer_ctl);
+             my_data->current_backend_cfg[idx].bitwidth_mixer_ctl = NULL;
+         }
+
+         if (my_data->current_backend_cfg[idx].samplerate_mixer_ctl) {
+             free(my_data->current_backend_cfg[idx].samplerate_mixer_ctl);
+             my_data->current_backend_cfg[idx].samplerate_mixer_ctl = NULL;
+         }
+
+         if (my_data->current_backend_cfg[idx].channels_mixer_ctl) {
+             free(my_data->current_backend_cfg[idx].channels_mixer_ctl);
+             my_data->current_backend_cfg[idx].channels_mixer_ctl = NULL;
+         }
+    }
+
+    /* free acdb_meta_key_list */
+    platform_release_acdb_metainfo_key(platform);
+
     free(platform);
     /* deinit usb */
     audio_extn_usb_deinit();
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index 9a5d647..b6f84ca 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -2531,6 +2531,17 @@
     return my_data;
 }
 
+void platform_release_acdb_metainfo_key(void *platform)
+{
+    struct platform_data *my_data = (struct platform_data *)platform;
+    struct listnode *node, *tempnode;
+
+    list_for_each_safe(node, tempnode, &my_data->acdb_meta_key_list) {
+        list_remove(node);
+        free(node_to_item(node, struct meta_key_list, list));
+    }
+}
+
 void platform_deinit(void *platform)
 {
     struct platform_data *my_data = (struct platform_data *)platform;
@@ -2578,6 +2589,28 @@
         my_data->adev->mixer = NULL;
     }
 
+    int32_t idx;
+
+    for (idx = 0; idx < MAX_CODEC_BACKENDS; idx++) {
+         if (my_data->current_backend_cfg[idx].bitwidth_mixer_ctl) {
+             free(my_data->current_backend_cfg[idx].bitwidth_mixer_ctl);
+             my_data->current_backend_cfg[idx].bitwidth_mixer_ctl = NULL;
+         }
+
+         if (my_data->current_backend_cfg[idx].samplerate_mixer_ctl) {
+             free(my_data->current_backend_cfg[idx].samplerate_mixer_ctl);
+             my_data->current_backend_cfg[idx].samplerate_mixer_ctl = NULL;
+         }
+
+         if (my_data->current_backend_cfg[idx].channels_mixer_ctl) {
+             free(my_data->current_backend_cfg[idx].channels_mixer_ctl);
+             my_data->current_backend_cfg[idx].channels_mixer_ctl = NULL;
+         }
+    }
+
+    /* free acdb_meta_key_list */
+    platform_release_acdb_metainfo_key(platform);
+
     free(platform);
     /* deinit usb */
     audio_extn_usb_deinit();
diff --git a/hal/platform_api.h b/hal/platform_api.h
index 0fec452..4074694 100644
--- a/hal/platform_api.h
+++ b/hal/platform_api.h
@@ -108,6 +108,7 @@
                                       effect_type_t effect_type);
 int platform_get_snd_device_bit_width(snd_device_t snd_device);
 int platform_set_acdb_metainfo_key(void *platform, char *name, int key);
+void platform_release_acdb_metainfo_key(void *platform);
 int platform_get_meta_info_key_from_list(void *platform, char *mod_name);
 int platform_set_native_support(int na_mode);
 int platform_get_native_support();