diff --git a/components/bt/common/osi/thread.c b/components/bt/common/osi/thread.c
index f53eadb665..91bc7906ce 100644
--- a/components/bt/common/osi/thread.c
+++ b/components/bt/common/osi/thread.c
@@ -271,10 +271,10 @@ _err:
         }
 
         for (int i = 0; i < thread->work_queue_num; i++) {
-            if (thread->work_queues[i]) {
+            if (thread->work_queues && thread->work_queues[i]) {
                 osi_work_queue_delete(thread->work_queues[i]);
+                thread->work_queues[i] = NULL;
             }
-            thread->work_queues[i] = NULL;
         }
 
         if (thread->work_queues) {
diff --git a/examples/bluetooth/bluedroid/ble_50/ble50_security_client/main/ble50_sec_gattc_demo.c b/examples/bluetooth/bluedroid/ble_50/ble50_security_client/main/ble50_sec_gattc_demo.c
index b08e6c8177..d598896188 100644
--- a/examples/bluetooth/bluedroid/ble_50/ble50_security_client/main/ble50_sec_gattc_demo.c
+++ b/examples/bluetooth/bluedroid/ble_50/ble50_security_client/main/ble50_sec_gattc_demo.c
@@ -420,7 +420,7 @@ static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *par
     }
     case ESP_GAP_BLE_EXT_SCAN_START_COMPLETE_EVT:
         if (param->ext_scan_start.status != ESP_BT_STATUS_SUCCESS) {
-            ESP_LOGE(GATTC_TAG, "scan start failed, error status = %x", param->scan_start_cmpl.status);
+            ESP_LOGE(GATTC_TAG, "scan start failed, error status = %x", param->ext_scan_start.status);
             break;
         }
         ESP_LOGI(GATTC_TAG, "Scan start success");