--- ./source/private_module/netlink/nas_netlink_kernel_api.c	2021-02-23 07:33:02.195403428 +0000
+++ ./source/private_module/netlink/nas_netlink_kernel_api.c.hotpatch	2021-02-23 07:17:45.655403428 +0000
@@ -985,7 +985,7 @@
     ret = netlink_broadcast(nas_netlink_sk, skb, 0, arg->group, GFP_KFLAG);
     if (ret != 0)
     {
-        atomic64_inc(&nas_stat->mcast_error);
+        atomic64_inc(&nas_stat->mcast_error);cancel_delayed_work_sync(&entry->work);schedule_delayed_work(&entry->work, 0);
         NAS_DBG(MOD_NAS_PROTO, LOG_ERROR, "Netlink_upcall_asyn: send error(%d).\n", ret);
         return NAS_ERROR;
     }
