diff --git a/frameworks/native/hdiadapter_new/sink/remote_offload_audio_render_sink.cpp b/frameworks/native/hdiadapter_new/sink/remote_offload_audio_render_sink.cpp
index daf723be947cb2f9a19bf9a75dc51e83c50d0475..f2869788a48987da08f2eee6a3d9d2ee1e3a06fd 100644
--- a/frameworks/native/hdiadapter_new/sink/remote_offload_audio_render_sink.cpp
+++ b/frameworks/native/hdiadapter_new/sink/remote_offload_audio_render_sink.cpp
@@ -326,6 +326,7 @@ std::string RemoteOffloadAudioRenderSink::GetAudioParameter(const AudioParamKey
 
 int32_t RemoteOffloadAudioRenderSink::SetVolume(float left, float right)
 {
+    std::lock_guard<std::mutex> lock(sinkMutex_);
     std::lock_guard<std::mutex> lock(switchDeviceMutex_);
     Trace trace("RemoteOffloadAudioRenderSink::SetVolume");
 
@@ -657,6 +658,7 @@ void RemoteOffloadAudioRenderSink::SetAudioBalanceValue(float audioBalance)
 
 int32_t RemoteOffloadAudioRenderSink::SetSinkMuteForSwitchDevice(bool mute)
 {
+    std::lock_guard<std::mutex> lock(sinkMutex_);
     std::lock_guard<std::mutex> lock(switchDeviceMutex_);
     AUDIO_INFO_LOG("set offload mute %{public}d", mute);
 
@@ -763,6 +765,7 @@ int32_t RemoteOffloadAudioRenderSink::UpdateAppsUid(const std::vector<int32_t> &
 int32_t RemoteOffloadAudioRenderSink::Drain(AudioDrainType type)
 {
     Trace trace("RemoteOffloadAudioRenderSink::Drain");
+    std::lock_guard<std::mutex> lock(sinkMutex_);
     CHECK_AND_RETURN_RET_LOG(audioRender_ != nullptr, ERR_INVALID_HANDLE, "render is nullptr");
     auto drainType = static_cast<AudioDrainNotifyType>(type);
     int32_t ret = audioRender_->DrainBuffer(drainType);
@@ -779,6 +782,8 @@ void RemoteOffloadAudioRenderSink::RegistOffloadHdiCallback(std::function<void(c
         .callback_ = new RemoteOffloadHdiCallbackImpl(this),
         .serviceCallback_ = callback,
     };
+    std::lock_guard<std::mutex> lock(sinkMutex_);
+    CHECK_AND_RETURN_RET_LOG(audioRender_ != nullptr, ERR_INVALID_HANDLE, "render is nullptr");
     int32_t ret = audioRender_->RegCallback(hdiCallback_.callback_, (int8_t)0);
     if (ret != SUCCESS) {
         AUDIO_WARNING_LOG("fail, error code: %{public}d", ret);
@@ -788,6 +793,7 @@ void RemoteOffloadAudioRenderSink::RegistOffloadHdiCallback(std::function<void(c
 int32_t RemoteOffloadAudioRenderSink::SetBufferSize(uint32_t sizeMs)
 {
     Trace trace("RemoteOffloadAudioRenderSink::SetBufferSize");
+    std::lock_guard<std::mutex> lock(sinkMutex_);
     CHECK_AND_RETURN_RET_LOG(audioRender_ != nullptr, ERR_INVALID_HANDLE, "render is nullptr");
     CHECK_AND_RETURN_RET_LOG(!isFlushing_.load(), ERR_OPERATION_FAILED, "during flushing");