diff --git a/.codespellrc b/.codespellrc
index a886554427d..e9be43f2160 100644
--- a/.codespellrc
+++ b/.codespellrc
@@ -1,4 +1,4 @@
 [codespell]
 skip = build,*.yuv,components/fatfs/src/*,alice.txt,*.rgb,components/wpa_supplicant/*,components/esp_wifi/*,*.pem
-ignore-words-list = ser,dout,rsource,fram,inout,shs,ans,aci,unstall,unstalling,hart,wheight,wel,ot,fane,assertIn,registr,oen
+ignore-words-list = ser,dout,rsource,fram,inout,shs,ans,aci,unstall,unstalling,hart,wheight,wel,ot,fane,assertIn,registr,oen,parms
 write-changes = true
diff --git a/components/bt/host/bluedroid/stack/btm/btm_main.c b/components/bt/host/bluedroid/stack/btm/btm_main.c
index e9e443380c8..1519ecb990a 100644
--- a/components/bt/host/bluedroid/stack/btm/btm_main.c
+++ b/components/bt/host/bluedroid/stack/btm/btm_main.c
@@ -110,6 +110,9 @@ void btm_free(void)
     fixed_queue_free(btm_cb.sec_pending_q, osi_free_func);
     btm_acl_free();
     btm_sec_dev_free();
+#if BTM_SCO_INCLUDED == TRUE
+    btm_sco_free();
+#endif
 #if BTM_DYNAMIC_MEMORY
     FREE_AND_RESET(btm_cb_ptr);
 #endif
diff --git a/components/bt/host/bluedroid/stack/btm/btm_sco.c b/components/bt/host/bluedroid/stack/btm/btm_sco.c
index 53a9768a1ae..7dede5d4d3f 100644
--- a/components/bt/host/bluedroid/stack/btm/btm_sco.c
+++ b/components/bt/host/bluedroid/stack/btm/btm_sco.c
@@ -123,6 +123,22 @@ void btm_sco_init (void)
     btm_cb.sco_cb.desired_sco_mode = BTM_DEFAULT_SCO_MODE;
 }
 
+/*******************************************************************************
+**
+** Function         btm_sco_free
+**
+** Description      Free sco specific fixed_queue from btm control block
+**
+*******************************************************************************/
+void btm_sco_free(void)
+{
+#if (BTM_SCO_HCI_INCLUDED == TRUE)
+    for (int i = 0; i < BTM_MAX_SCO_LINKS; i++) {
+        fixed_queue_free(btm_cb.sco_cb.sco_db[i].xmit_data_q, osi_free_func);
+    }
+#endif
+}
+
 /*******************************************************************************
 **
 ** Function         btm_esco_conn_rsp
@@ -233,7 +249,7 @@ void btm_sco_process_num_bufs (UINT16 num_lm_sco_bufs)
 **                               pointer is used, PCM parameter maintained in
 **                               the control block will be used; otherwise update
 **                               control block value.
-**                  err_data_rpt: Lisbon feature to enable the erronous data report
+**                  err_data_rpt: Lisbon feature to enable the erroneous data report
 **                                or not.
 **
 ** Returns          BTM_SUCCESS if the successful.
@@ -947,7 +963,7 @@ void btm_sco_conn_req (BD_ADDR bda,  DEV_CLASS dev_class, UINT8 link_type)
     for (xx = 0; xx < BTM_MAX_SCO_LINKS; xx++, p++) {
         /*
          * If the sco state is in the SCO_ST_CONNECTING state, we still need
-         * to return accept sco to avoid race conditon for sco creation
+         * to return accept sco to avoid race condition for sco creation
          */
         int rem_bd_matches = p->rem_bd_known &&
                              !memcmp (p->esco.data.bd_addr, bda, BD_ADDR_LEN);
diff --git a/components/bt/host/bluedroid/stack/btm/include/btm_int.h b/components/bt/host/bluedroid/stack/btm/include/btm_int.h
index 64bcc300cd2..df7e435db1a 100644
--- a/components/bt/host/bluedroid/stack/btm/include/btm_int.h
+++ b/components/bt/host/bluedroid/stack/btm/include/btm_int.h
@@ -1119,6 +1119,7 @@ void btm_ble_periodic_adv_sync_trans_complete(UINT16 op_code, UINT8 hci_status,
 ********************************************
 */
 void btm_sco_init (void);
+void btm_sco_free(void);
 void btm_sco_connected (UINT8 hci_status, BD_ADDR bda, UINT16 hci_handle,
                         tBTM_ESCO_DATA *p_esco_data);
 void btm_esco_proc_conn_chg (UINT8 status, UINT16 handle, UINT8 tx_interval,