Fix bug of memcpy input 0.

ge/hybrid/executor/hybrid_model_async_executor.cc

@@ -296,7 +296,7 @@ Status HybridModelAsyncExecutor::PrepareInputs(const InputData &current_data, Hy
                            "input data size(%lu) does not match model required size(%lu), ret failed.",
                            data_buf.length,
                            mem_size);
-
+    if (data_buf.length) {
       GELOGI("[IMAS]CopyPlainData memcpy graph_%u type[F] output[%zu] memaddr[%p] mem_size[%zu] datasize[%lu]",
              model_->root_runtime_param_.graph_id,
              input_index,
@@ -309,6 +309,7 @@ Status HybridModelAsyncExecutor::PrepareInputs(const InputData &current_data, Hy
                              data_buf.length,
                              RT_MEMCPY_HOST_TO_DEVICE));
     }
+  }
 
   return SUCCESS;
 }