From 6e12fb164401265304111e4c0f2fafb935f67d23 Mon Sep 17 00:00:00 2001
From: caifubi <caifubi1@huawei.com>
Date: Tue, 16 Jun 2020 11:04:58 +0800
Subject: [PATCH] set prof_handle_ to nullptr after release

---
 mindspore/ccsrc/device/ascend/profiling/profiling_manager.cc | 4 +++-
 mindspore/ccsrc/device/ascend/profiling/profiling_manager.h  | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/mindspore/ccsrc/device/ascend/profiling/profiling_manager.cc b/mindspore/ccsrc/device/ascend/profiling/profiling_manager.cc
index 6cf3cad62f..adc6407af2 100644
--- a/mindspore/ccsrc/device/ascend/profiling/profiling_manager.cc
+++ b/mindspore/ccsrc/device/ascend/profiling/profiling_manager.cc
@@ -169,7 +169,7 @@ bool ProfilingManager::StartupProfiling(uint32_t device_id) {
   return true;
 }
 
-bool ProfilingManager::StopProfiling() const {
+bool ProfilingManager::StopProfiling() {
   MS_LOG(INFO) << "StopProfiling";
   if (!IsProfiling()) {
     MS_LOG(INFO) << "No need profiling. please export PROFILING_MODE and in train mode.";
@@ -184,8 +184,10 @@ bool ProfilingManager::StopProfiling() const {
     int result = ProfMgrStop(prof_handle_);
     if (result != 0) {
       MS_LOG(ERROR) << "ProfMgr stop return fail:" << result << ".";
+      prof_handle_ = nullptr;
       return false;
     }
+    prof_handle_ = nullptr;
   }
 
   return true;
diff --git a/mindspore/ccsrc/device/ascend/profiling/profiling_manager.h b/mindspore/ccsrc/device/ascend/profiling/profiling_manager.h
index f0c25d7f8a..c30c6898ea 100644
--- a/mindspore/ccsrc/device/ascend/profiling/profiling_manager.h
+++ b/mindspore/ccsrc/device/ascend/profiling/profiling_manager.h
@@ -39,7 +39,7 @@ class ProfilingManager {
   uint64_t GetJobId() const;
   bool ReportProfilingData(const map<uint32_t, string> &op_taskId_map) const;
   bool StartupProfiling(uint32_t device_id);
-  bool StopProfiling() const;
+  bool StopProfiling();
 
   inline bool IsProfiling() const {
     auto context = MsContext::GetInstance();