From a0c7e047f511cad0dc572a12f1cf7f68cf986301 Mon Sep 17 00:00:00 2001
From: Megvii Engine Team <megengine@megvii.com>
Date: Tue, 3 Aug 2021 15:23:46 +0800
Subject: [PATCH] fix(extern_c_opr): let megbrain throw a exception when load
 extern c opr fails

GitOrigin-RevId: 16f5ceb8e3b0413de80812c3f3b3b75fa8205460
---
 src/serialization/impl/extern_c_opr.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/serialization/impl/extern_c_opr.cpp b/src/serialization/impl/extern_c_opr.cpp
index ec34ffaf8..a8b42cdbd 100644
--- a/src/serialization/impl/extern_c_opr.cpp
+++ b/src/serialization/impl/extern_c_opr.cpp
@@ -518,6 +518,10 @@ cg::OperatorNodeBase* ExternCOprRunner::load(OprLoadContext& ctx,
     if (auto trans = iter->second.second) {
         desc = trans(desc);
     }
+
+    mgb_throw_if(nullptr == desc, MegBrainError,
+                 "loader create desc returns nullptr");
+
     return make_from_desc(dump_name, inputs, desc, config);
 }
 
-- 
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