diff --git a/bufferinfo/legacy/BufferInfoMaliHisi.h b/bufferinfo/legacy/BufferInfoMaliHisi.h
index e809d06..cc37491 100644
--- a/bufferinfo/legacy/BufferInfoMaliHisi.h
+++ b/bufferinfo/legacy/BufferInfoMaliHisi.h
@@ -27,7 +27,7 @@
  public:
   using LegacyBufferInfoGetter::LegacyBufferInfoGetter;
 
-  int ConvertBoInfo(buffer_handle_t handle, BufferInfo *bo) override;
+  auto GetBoInfo(buffer_handle_t handle) -> std::optional<BufferInfo> override;
 
  private:
   uint64_t ConvertGrallocFormatToDrmModifiers(uint64_t flags, bool is_rgb);