diff --git a/frameworks/datatransmitmgr/dev_slinfo_list.c b/frameworks/datatransmitmgr/dev_slinfo_list.c
index cc337198e432d9fa39be81bb6fa09c60b186527c..1e9a6d17030066445b92dae09dc88b33c5f13d59 100644
--- a/frameworks/datatransmitmgr/dev_slinfo_list.c
+++ b/frameworks/datatransmitmgr/dev_slinfo_list.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -19,20 +19,20 @@
 #include "dev_slinfo_adpt.h"
 #include "dev_slinfo_log.h"
 
-pthread_mutex_t gMutex;
+pthread_mutex_t g_Mutex;
 
 struct DATASLListParams* InitList(void)
 {
-    (void)pthread_mutex_lock(&gMutex);
+    (void)pthread_mutex_lock(&g_Mutex);
     struct DATASLListParams *list = (struct DATASLListParams *)malloc(sizeof(struct DATASLListParams));
     if (list == NULL) {
-        (void)pthread_mutex_unlock(&gMutex);
+        (void)pthread_mutex_unlock(&g_Mutex);
         return NULL;
     }
     list->next = list;
     list->prev = list;
     list->callbackParams = NULL;
-    (void)pthread_mutex_unlock(&gMutex);
+    (void)pthread_mutex_unlock(&g_Mutex);
     return list;
 }
 
@@ -47,22 +47,22 @@ static void UpdateListNode(struct DATASLListParams *newListNode,
 
 int32_t PushListNode(struct DATASLListParams *list, struct DATASLCallbackParams *callbackParams)
 {
-    (void)pthread_mutex_lock(&gMutex);
+    (void)pthread_mutex_lock(&g_Mutex);
     struct DATASLListParams *newList = (struct DATASLListParams*)malloc(sizeof(struct DATASLListParams));
     if (newList == NULL) {
-        (void)pthread_mutex_unlock(&gMutex);
+        (void)pthread_mutex_unlock(&g_Mutex);
         return DEVSL_ERR_OUT_OF_MEMORY;
     }
 
     UpdateListNode(newList, list->prev, list);
     newList->callbackParams = callbackParams;
-    (void)pthread_mutex_unlock(&gMutex);
+    (void)pthread_mutex_unlock(&g_Mutex);
     return DEVSL_SUCCESS;
 }
 
 void RemoveListNode(struct DATASLListParams *list,  struct DATASLCallbackParams *callbackParams)
 {
-    (void)pthread_mutex_lock(&gMutex);
+    (void)pthread_mutex_lock(&g_Mutex);
     struct DATASLListParams *pList = list->next;
     while (pList != NULL && pList != list) {
         if (CompareUdid(&(pList->callbackParams->queryParams), &(callbackParams->queryParams)) == DEVSL_SUCCESS) {
@@ -78,14 +78,14 @@ void RemoveListNode(struct DATASLListParams *list,  struct DATASLCallbackParams
         }
         pList = pList->next;
     }
-    (void)pthread_mutex_unlock(&gMutex);
+    (void)pthread_mutex_unlock(&g_Mutex);
 }
 
 void ClearList(struct DATASLListParams *list)
 {
-    (void)pthread_mutex_lock(&gMutex);
+    (void)pthread_mutex_lock(&g_Mutex);
     if (list == NULL) {
-        (void)pthread_mutex_unlock(&gMutex);
+        (void)pthread_mutex_unlock(&g_Mutex);
         return;
     }
     struct DATASLListParams *pList = list->next;
@@ -103,19 +103,19 @@ void ClearList(struct DATASLListParams *list)
         free(list->callbackParams);
     }
     free(list);
-    (void)pthread_mutex_unlock(&gMutex);
+    (void)pthread_mutex_unlock(&g_Mutex);
 }
 
 int32_t GetListLength(struct DATASLListParams *list)
 {
-    (void)pthread_mutex_lock(&gMutex);
+    (void)pthread_mutex_lock(&g_Mutex);
     struct DATASLListParams *pList = list->next;
     int32_t listLength = 0;
     while (pList != NULL && pList != list) {
         listLength++;
         pList = pList->next;
     }
-    (void)pthread_mutex_unlock(&gMutex);
+    (void)pthread_mutex_unlock(&g_Mutex);
     return listLength;
 }
 
@@ -124,7 +124,7 @@ void LookupCallback(struct DATASLListParams *list, DEVSLQueryParams *queryParams
     struct DATASLCallbackParams tmpCallbackParams;
     (void)memset_s(&tmpCallbackParams, sizeof(struct DATASLCallbackParams), 0, sizeof(struct DATASLCallbackParams));
     int32_t ret = DEVSL_ERROR;
-    (void)pthread_mutex_lock(&gMutex);
+    (void)pthread_mutex_lock(&g_Mutex);
     struct DATASLListParams *tmpCallback = list->next;
     while (tmpCallback != NULL && tmpCallback != list) {
         struct DATASLListParams *nextCallback = tmpCallback->next;
@@ -145,7 +145,7 @@ void LookupCallback(struct DATASLListParams *list, DEVSLQueryParams *queryParams
         }
         tmpCallback = nextCallback;
     }
-    (void)pthread_mutex_unlock(&gMutex);
+    (void)pthread_mutex_unlock(&g_Mutex);
     if (ret == DEVSL_SUCCESS) {
         tmpCallbackParams.callback(&(tmpCallbackParams.queryParams), result, levelInfo);
     }
@@ -154,11 +154,11 @@ void LookupCallback(struct DATASLListParams *list, DEVSLQueryParams *queryParams
 int32_t InitPthreadMutex(void)
 {
     int32_t ret;
-    ret = pthread_mutex_init(&gMutex, NULL);
+    ret = pthread_mutex_init(&g_Mutex, NULL);
     return ret;
 }
 
 void DestroyPthreadMutex(void)
 {
-    pthread_mutex_destroy(&gMutex);
+    pthread_mutex_destroy(&g_Mutex);
 }
\ No newline at end of file
diff --git a/test/fuzztest/datatransmitmgr/datatransmitmgr_fuzzer/datatransmitmgr_fuzzer.cpp b/test/fuzztest/datatransmitmgr/datatransmitmgr_fuzzer/datatransmitmgr_fuzzer.cpp
index 02e46b38c681ac445a323fbad55d1cf8e669d331..465ee9ec98e256b0e8d942d24dad855affe128e2 100644
--- a/test/fuzztest/datatransmitmgr/datatransmitmgr_fuzzer/datatransmitmgr_fuzzer.cpp
+++ b/test/fuzztest/datatransmitmgr/datatransmitmgr_fuzzer/datatransmitmgr_fuzzer.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -73,22 +73,22 @@ namespace OHOS {
     }
 }
 
-static void NativeTokenGet()
+static void NativeTokenGetFUZZ()
 {
     uint64_t tokenId;
     const char **perms = new const char *[1];
     perms[0] = "ohos.permission.DISTRIBUTED_DATASYNC";
     NativeTokenInfoParams infoInstance = {
+        .acls = nullptr,
+        .dcaps = nullptr,
+        .aclsNum = 0,
         .dcapsNum = 0,
         .permsNum = 1,
-        .aclsNum = 0,
-        .dcaps = nullptr,
         .perms = perms,
-        .acls = nullptr,
         .aplStr = "system_basic",
     };
 
-    infoInstance.processName = "DevSLMgrTest";
+    infoInstance.processName = "DataTransmitMgrFuzzTest";
     tokenId = GetAccessTokenId(&infoInstance);
     SetSelfTokenID(tokenId);
     OHOS::Security::AccessToken::AccessTokenKit::ReloadNativeTokenInfo();
@@ -99,7 +99,7 @@ static void NativeTokenGet()
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
 {
     /* Run your code on data */
-    NativeTokenGet();
+    NativeTokenGetFUZZ();
     OHOS::FuzzDoDataTransmitMgr(data, size);
     return 0;
 }
\ No newline at end of file
diff --git a/test/unittest/datatransmitmgr/DevSLMgrTest.cpp b/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
index d34aae78bab3af6007e4075a7ea829d4d036a7f6..4b6e22575ea0a58f71bded13b6810c927667db86 100644
--- a/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
+++ b/test/unittest/datatransmitmgr/DevSLMgrTest.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2022 Huawei Device Co., Ltd.
+ * Copyright (C) 2022-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -354,7 +354,7 @@ static struct DATASLListParams *g_tmpList = nullptr;
 
 static void ListCallback(DEVSLQueryParams *queryParams, int32_t result, uint32_t levelInfo)
 {
-    EXPECT_EQ(DEVSL_SUCCESS, DEVSL_SUCCESS);
+    EXPECT_EQ(result, DEVSL_SUCCESS);
 }
 
 static HWTEST_F(DevSLMgrTest, TestGetHighestSecLevelExcept003, TestSize.Level1)
@@ -380,9 +380,7 @@ static HWTEST_F(DevSLMgrTest, TestGetHighestSecLevelExcept003, TestSize.Level1)
 
     struct DATASLCallbackParams *newListNode =
         (struct DATASLCallbackParams*)malloc(sizeof(struct DATASLCallbackParams));
-    if (newListNode == nullptr) {
-        EXPECT_EQ(DEVSL_SUCCESS, DEVSL_SUCCESS);
-    }
+    EXPECT_NE(newListNode, nullptr);
     (void)memcpy_s(newListNode->queryParams.udid, MAX_UDID_LENGTH, queryParamsOpp.udid, queryParamsOpp.udidLen);
     newListNode->queryParams.udidLen = queryParamsOpp.udidLen;
     newListNode->callback = &ListCallback;
@@ -407,9 +405,7 @@ static void AddList(void)
 
     struct DATASLCallbackParams *newListNode =
         (struct DATASLCallbackParams*)malloc(sizeof(struct DATASLCallbackParams));
-    if (newListNode == nullptr) {
-        EXPECT_EQ(DEVSL_SUCCESS, DEVSL_SUCCESS);
-    }
+    EXPECT_NE(newListNode, nullptr);
     (void)memcpy_s(newListNode->queryParams.udid, MAX_UDID_LENGTH, queryParams.udid, queryParams.udidLen);
     newListNode->queryParams.udidLen = queryParams.udidLen;
     newListNode->callback = &tmpCallbackExcept004;