From 666a7dda369e9a30715f560c8f72b81735a347fc Mon Sep 17 00:00:00 2001
From: Jeffrey Wilcke <geffobscura@gmail.com>
Date: Mon, 6 Jul 2015 20:59:12 +0200
Subject: core, eth, rpc: proper gas used. Closes #1417

Added some additional backward compatibility code for old receipts
---
 eth/gasprice.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'eth/gasprice.go')

diff --git a/eth/gasprice.go b/eth/gasprice.go
index 09ef8cded..4aa2ad295 100644
--- a/eth/gasprice.go
+++ b/eth/gasprice.go
@@ -134,7 +134,9 @@ func (self *GasPriceOracle) lowestPrice(block *types.Block) *big.Int {
 
 	receipts := self.eth.BlockProcessor().GetBlockReceipts(block.Hash())
 	if len(receipts) > 0 {
-		gasUsed = receipts[len(receipts)-1].CumulativeGasUsed
+		if cgu := receipts[len(receipts)-1].CumulativeGasUsed; cgu != nil {
+			gasUsed = receipts[len(receipts)-1].CumulativeGasUsed
+		}
 	}
 
 	if new(big.Int).Mul(gasUsed, big.NewInt(100)).Cmp(new(big.Int).Mul(block.GasLimit(),
-- 
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