diff --git a/frameworks/wms/lite_proxy_surface.h b/frameworks/wms/lite_proxy_surface.h
index 8016d38a7b4f8cc1b3798af8a3fc29671972b52e..a3f3c3e060758fed1c329461685cffdb0ae1e4c8 100644
--- a/frameworks/wms/lite_proxy_surface.h
+++ b/frameworks/wms/lite_proxy_surface.h
@@ -26,8 +26,8 @@ public:
     explicit LiteProxySurface(Surface* surface);
     virtual ~LiteProxySurface();
 
-    virtual void Lock(void** buf, void** phyMem, uint32_t* strideLen) override;
-    virtual void Unlock() override;
+    void Lock(void** buf, void** phyMem, uint32_t* strideLen) override;
+    void Unlock() override;
 
 private:
     SurfaceBuffer* buffer_;
diff --git a/frameworks/wms/lite_wm_requestor.h b/frameworks/wms/lite_wm_requestor.h
index a1ff3b60e1d1778c71528b0106ae6c827d3f1607..b4f0f438ffad4a19ba068f24506d6b17260dbb86 100644
--- a/frameworks/wms/lite_wm_requestor.h
+++ b/frameworks/wms/lite_wm_requestor.h
@@ -31,7 +31,7 @@ public:
     static int32_t WmsMsgHandler(uint32_t code, IpcIo* data, IpcIo* reply, MessageOption option);
     static int32_t SurfaceRequestHandler(uint32_t code, IpcIo* data, IpcIo* reply, MessageOption option);
 
-    virtual void OnBufferAvailable() override;
+    void OnBufferAvailable() override;
 
     void ClientRegister();
     void GetLayerInfo();
diff --git a/services/wms/lite_win.cpp b/services/wms/lite_win.cpp
index 9dc547df5a76c5e779c46b0bb453496315246697..2362bf88c40450a9607f9cde27824739f248448f 100644
--- a/services/wms/lite_win.cpp
+++ b/services/wms/lite_win.cpp
@@ -50,7 +50,7 @@ LiteWindow::LiteWindow(const LiteWinConfig& config)
     : id_(INVALID_WINDOW_ID), pid_(INVALID_PID), isShow_(false), config_(config), surface_(nullptr),
       backBuf_(nullptr), sid_({}), needUnregister_(false)
 {
-    pthread_mutex_init(&backBufMutex_, NULL);
+    pthread_mutex_init(&backBufMutex_, nullptr);
     id_ = LiteWM::GetInstance()->GetUniqueWinId();
 }
 
diff --git a/services/wms/lite_wm.cpp b/services/wms/lite_wm.cpp
index b054c0481e5df3ebf54ec9129cf2a27f947b0530..42948a196e99bc14dc1efd876b56c338d89b9145 100644
--- a/services/wms/lite_wm.cpp
+++ b/services/wms/lite_wm.cpp
@@ -101,9 +101,9 @@ LiteWM::LiteWM()
       needScreenshot_(false), screenshotSurface_(nullptr), winIdStorage(0)
 {
     InitMutex(stackLock_, PTHREAD_MUTEX_RECURSIVE);
-    pthread_mutex_init(&mouseLock_, NULL);
-    pthread_mutex_init(&eventLock_, NULL);
-    pthread_mutex_init(&screenshotMutex_, NULL);
+    pthread_mutex_init(&mouseLock_, nullptr);
+    pthread_mutex_init(&eventLock_, nullptr);
+    pthread_mutex_init(&screenshotMutex_, nullptr);
 
     InputManagerService::GetInstance()->GetDistributer()->AddRawEventListener(this);
     InitMouseCursor();