qcacld-3.0: Fix assert when netdev is going down

Move destruction of blocked_scan_request_q and related lock
from __hdd_netdev_notifier_call to hdd_close_adapter
for the former one might be invoked for more than once and
could cause issues.

Change-Id: Ifb62750a09a2dcca381217a41280ad943942ee35
CRs-Fixed: 2267481

core/hdd/src/wlan_hdd_main.c

@@ -650,8 +650,6 @@ static int __hdd_netdev_notifier_call(struct notifier_block *nb,
 		cds_flush_work(&adapter->scan_block_work);
 		/* Need to clean up blocked scan request */
 		wlan_hdd_cfg80211_scan_block_cb(&adapter->scan_block_work);
-		qdf_list_destroy(&adapter->blocked_scan_request_q);
-		qdf_mutex_destroy(&adapter->blocked_scan_request_q_lock);
 		hdd_debug("Scan is not Pending from user");
 		/*
 		 * After NETDEV_GOING_DOWN, kernel calls hdd_stop.Irrespective
@@ -4884,6 +4882,9 @@ QDF_STATUS hdd_close_adapter(struct hdd_context *hdd_ctx, struct hdd_adapter *ad
 	hdd_bus_bw_compute_timer_stop(hdd_ctx);
 	hdd_bus_bw_cancel_work(hdd_ctx);
 
+	qdf_list_destroy(&adapter->blocked_scan_request_q);
+	qdf_mutex_destroy(&adapter->blocked_scan_request_q_lock);
+
 	/* cleanup adapter */
 	policy_mgr_clear_concurrency_mode(hdd_ctx->hdd_psoc,
 					  adapter->device_mode);