diff --git a/services/audio/src/audio_control_manager.cpp b/services/audio/src/audio_control_manager.cpp
index b6ca93003c0dbcac4f44e8056d5c576dedddc970..6f81200208f1535e0a7fb60067fb2de6876f0496 100644
--- a/services/audio/src/audio_control_manager.cpp
+++ b/services/audio/src/audio_control_manager.cpp
@@ -548,10 +548,6 @@ int32_t AudioControlManager::HandleBluetoothAudioDevice(const AudioDevice &devic
     remoteDevice.push_back(audioDev);
     AudioSystemManager* audioSystemManager = AudioSystemManager::GetInstance();
     sptr<AudioRendererFilter> audioRendererFilter = new(std::nothrow) AudioRendererFilter();
-    if (audioRendererFilter == nullptr) {
-        TELEPHONY_LOGE("audioRendererFilter is nullptr");
-        return CALL_ERR_AUDIO_SET_AUDIO_DEVICE_FAILED;
-    }
     audioRendererFilter->rendererInfo.streamUsage = StreamUsage::STREAM_USAGE_VOICE_MODEM_COMMUNICATION;
     int32_t ret = audioSystemManager->SelectOutputDevice(audioRendererFilter, remoteDevice);
     if (ret != 0) {
diff --git a/services/call/src/call_control_manager.cpp b/services/call/src/call_control_manager.cpp
index b51074a4e9fb473c896b27c46446df87c549229e..fc604f8d195fd4a6d76991a6a23f06e82a8f182d 100644
--- a/services/call/src/call_control_manager.cpp
+++ b/services/call/src/call_control_manager.cpp
@@ -1534,10 +1534,8 @@ int32_t CallControlManager::HandleVoipDisconnected(int32_t &numActive, int32_t n
     if (carrierCallId != ERR_ID) {
         TELEPHONY_LOGI("SetVoIPCallInfo handle cs call sucessed");
         sptr<CallBase> call = GetOneCallObject(carrierCallId);
-        if (call != nullptr) {
-            return DelayedSingleton<BluetoothCallManager>::GetInstance()->
-                SendBtCallState(0, 0, (int32_t)TelCallState::CALL_STATUS_INCOMING, call->GetAccountNumber());
-        }
+        return DelayedSingleton<BluetoothCallManager>::GetInstance()->
+            SendBtCallState(0, 0, (int32_t)TelCallState::CALL_STATUS_INCOMING, call->GetAccountNumber());
     }
     return DelayedSingleton<BluetoothCallManager>::GetInstance()->
         SendBtCallState(numActive, numHeld, (int32_t)TelCallState::CALL_STATUS_IDLE, "");
diff --git a/services/distributed_call/src/distributed_call_manager.cpp b/services/distributed_call/src/distributed_call_manager.cpp
index 9cf24a876d83301e521b1fd9df6d3c36985e9975..e4e731155f893ad0893b4f4280bf64ea2325d8d1 100644
--- a/services/distributed_call/src/distributed_call_manager.cpp
+++ b/services/distributed_call/src/distributed_call_manager.cpp
@@ -463,10 +463,6 @@ void DistributedCallManager::ReportDistributedDeviceInfo(const AudioDevice& devi
         }
     }
     sptr<AudioRendererFilter> audioRendererFilter = new(std::nothrow) AudioRendererFilter();
-    if (audioRendererFilter == nullptr) {
-        TELEPHONY_LOGE("audioRendererFilter nullptr");
-        return;
-    }
     audioRendererFilter->rendererInfo.contentType = ContentType::CONTENT_TYPE_SPEECH;
     audioRendererFilter->rendererInfo.streamUsage = StreamUsage::STREAM_USAGE_VOICE_MODEM_COMMUNICATION;
     audioSystemMananger->SelectOutputDevice(audioRendererFilter, remoteDevice);
@@ -498,10 +494,6 @@ void DistributedCallManager::ReportDistributedDeviceInfoForSwitchOff()
         }
     }
     sptr<AudioRendererFilter> audioRendererFilter = new(std::nothrow) AudioRendererFilter();
-    if (audioRendererFilter == nullptr) {
-        TELEPHONY_LOGE("audioRendererFilter nullptr");
-        return;
-    }
     audioRendererFilter->rendererInfo.contentType = ContentType::CONTENT_TYPE_SPEECH;
     audioRendererFilter->rendererInfo.streamUsage = StreamUsage::STREAM_USAGE_VOICE_MODEM_COMMUNICATION;
     audioSystemMananger->SelectOutputDevice(audioRendererFilter, remoteDevice);