From 4c4fd0a37a5a8f740c930752ec7f24033984ef41 Mon Sep 17 00:00:00 2001
From: parmarrushabh <rushabhparmar17@gmail.com>
Date: Sat, 17 Nov 2018 18:28:49 +0530
Subject: [PATCH] Fixed bug not validate zero gas price for tx deploy SMC.

---
 core/tx_pool.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/tx_pool.go b/core/tx_pool.go
index e2a8a5ba8c..ca6feb164c 100644
--- a/core/tx_pool.go
+++ b/core/tx_pool.go
@@ -605,7 +605,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 		return ErrInsufficientFunds
 	}
 
-	if tx.To() != nil && !tx.IsSpecialTransaction() {
+	if tx.To() == nil || (tx.To() != nil && !tx.IsSpecialTransaction()) {
 		intrGas, err := IntrinsicGas(tx.Data(), tx.To() == nil, pool.homestead)
 		if err != nil {
 			return err