From 74ead6ff35c7002ab735eaa52a25c20080e2aca3 Mon Sep 17 00:00:00 2001
From: minqiyang <minqiyang@baidu.com>
Date: Fri, 21 Dec 2018 15:24:14 +0800
Subject: [PATCH] Polish code

---
 paddle/fluid/imperative/layer.cc | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/paddle/fluid/imperative/layer.cc b/paddle/fluid/imperative/layer.cc
index ef6d8f4016..fcddcc4ed4 100644
--- a/paddle/fluid/imperative/layer.cc
+++ b/paddle/fluid/imperative/layer.cc
@@ -153,9 +153,6 @@ void VarBase::ApplyGrad(framework::Scope* scope, Variable* grad) {
 
 std::vector<Variable*> OpBase::ApplyGrad(framework::Scope* scope) {
   VLOG(3) << "op grad " << grad_op_desc_->Type();
-  if (!grad_to_var_) {
-    return {};
-  }
 
   for (const std::string& grad_invar : grad_op_desc_->InputArgumentNames()) {
     if (grad_to_var_->find(grad_invar) == grad_to_var_->end()) {
-- 
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