diff --git a/services/include/camera_server.h b/services/include/camera_server.h
index 5e09b92..c9e3671 100755
--- a/services/include/camera_server.h
+++ b/services/include/camera_server.h
@@ -45,9 +45,12 @@ public:
     void OnCameraStatusChange(int32_t ret, SvcIdentity *sid);
     void OnCameraConfigured(int32_t ret);
 private:
-    CameraServer() {}
+    CameraServer()
+    {
+        sid_.cookie = 0;
+    }
     SvcIdentity sid_;
 };
 } // namespace Media
 } // namespace OHOS
-#endif // CAMERA_SERVER_H
\ No newline at end of file
+#endif // CAMERA_SERVER_H
diff --git a/services/src/camera_device.cpp b/services/src/camera_device.cpp
index 949be55..907b4a5 100755
--- a/services/src/camera_device.cpp
+++ b/services/src/camera_device.cpp
@@ -356,7 +356,7 @@ int32_t RecordAssistant::SetFrameConfig(FrameConfig &fc, uint32_t *streamId)
     }
     for (auto &surface : surfaceList) {
         CODEC_HANDLETYPE codecHdl = nullptr;
-        StreamAttr stream;
+        StreamAttr stream = {};
 #ifdef __LINUX__
         StreamAttrInitialize(&stream, g_surface, STREAM_VIDEO, FORMAT_YVU420);
 #else
@@ -370,7 +370,7 @@ int32_t RecordAssistant::SetFrameConfig(FrameConfig &fc, uint32_t *streamId)
         fc.GetVendorParameter(streamInfo.u.data, PRIVATE_TAG_LEN);
         HalCameraStreamSetInfo(cameraId_, *streamId, &streamInfo);
 
-        uint32_t deviceId;
+        uint32_t deviceId = 0;
         HalCameraGetDeviceId(cameraId_, *streamId, &deviceId);
         int32_t ret = CameraCreateVideoEnc(fc, stream, deviceId, &codecHdl);
         if (ret != MEDIA_OK) {
@@ -462,7 +462,7 @@ int32_t PreviewAssistant::SetFrameConfig(FrameConfig &fc, uint32_t *streamId)
         return MEDIA_ERR;
     }
     Surface *surface = surfaceList.front();
-    StreamAttr stream;
+    StreamAttr stream = {};
     StreamAttrInitialize(&stream, surface, STREAM_PREVIEW, FORMAT_YVU420);
     HalCameraStreamCreate(cameraId_, &stream, streamId);
     StreamInfo streamInfo;
@@ -519,10 +519,10 @@ int32_t CaptureAssistant::SetFrameConfig(FrameConfig &fc, uint32_t *streamId)
     }
     Surface *surface = surfaceList.front();
 
-    StreamAttr stream;
+    StreamAttr stream = {};
     StreamAttrInitialize(&stream, surface, STREAM_CAPTURE, FORMAT_YVU420);
 
-    uint32_t deviceId;
+    uint32_t deviceId = 0;
     HalCameraStreamCreate(cameraId_, &stream, streamId);
     streamId_ = *streamId;
     HalCameraGetDeviceId(cameraId_, *streamId, &deviceId);
@@ -619,7 +619,7 @@ int32_t CallbackAssistant::SetFrameConfig(FrameConfig &fc, uint32_t *streamId)
     ImageFormat halImageFormat = Convert2HalImageFormat(imageFormat);
     MEDIA_INFO_LOG("Imageformat is %d", imageFormat);
     Surface *surface = surfaceList.front();
-    StreamAttr stream;
+    StreamAttr stream = {};
     StreamAttrInitialize(&stream, surface, STREAM_CALLBACK, halImageFormat);
     HalCameraStreamCreate(cameraId_, &stream, streamId);
     streamId_ = *streamId;
@@ -799,4 +799,4 @@ int32_t CameraDevice::SetCameraConfig()
     return MEDIA_OK;
 }
 } // namespace Media
-} // namespace OHOS
\ No newline at end of file
+} // namespace OHOS
diff --git a/services/src/camera_service.cpp b/services/src/camera_service.cpp
index cd804bb..91c8421 100755
--- a/services/src/camera_service.cpp
+++ b/services/src/camera_service.cpp
@@ -56,7 +56,7 @@ CameraAbility *CameraService::GetCameraAbility(std::string &cameraId)
     if (ability == nullptr) {
         return nullptr;
     }
-    uint32_t streamCapNum;
+    uint32_t streamCapNum = 0;
     StreamCap *streamCap = nullptr;
     int32_t ret = HalCameraGetStreamCapNum(atoi(cameraId.c_str()), &streamCapNum);
     streamCap = new StreamCap[streamCapNum];
@@ -71,7 +71,7 @@ CameraAbility *CameraService::GetCameraAbility(std::string &cameraId)
     }
     ability->SetParameterRange(PARAM_KEY_SIZE, range);
 
-    AbilityInfo cameraAbility;
+    AbilityInfo cameraAbility = {};
     HalCameraGetAbility(atoi(cameraId.c_str()), &cameraAbility);
     // Get supported AF Modes
     list<int32_t> afModes;