From c643c48287cea81f12ceed068323a5b493438220 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Thu, 24 Mar 2022 15:53:01 +0800
Subject: [PATCH] handle except

---
 source/libs/transport/src/transComm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source/libs/transport/src/transComm.c b/source/libs/transport/src/transComm.c
index 2d6485b346..8b668092dd 100644
--- a/source/libs/transport/src/transComm.c
+++ b/source/libs/transport/src/transComm.c
@@ -280,6 +280,9 @@ void* transCtxDumpVal(STransCtx* ctx, int32_t key) {
 }
 void* transCtxDumpBrokenlinkVal(STransCtx* ctx, int32_t* msgType) {
   void *ret = NULL;
+  if (ctx->brokenVal.clone == NULL) {
+     return ret; 
+  }
   (*ctx->brokenVal.clone)(ctx->brokenVal.val, &ret);
 
   *msgType = ctx->brokenVal.msgType;