From b3be9b7cd8f5f0e828d4d2aa6db1216ccd32ce3a Mon Sep 17 00:00:00 2001
From: Corey Lin <514971757@qq.com>
Date: Thu, 13 Dec 2018 17:21:52 +0800
Subject: [PATCH] usbwallet: check returned error when decoding hexstr (#18056)

* usbwallet: check returned error when decoding hexstr

* Update accounts/usbwallet/ledger.go

Co-Authored-By: CoreyLin <514971757@qq.com>

* usbwallet: check hex decode error
---
 accounts/usbwallet/ledger.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/accounts/usbwallet/ledger.go b/accounts/usbwallet/ledger.go
index 7d5f67908..c30903b5b 100644
--- a/accounts/usbwallet/ledger.go
+++ b/accounts/usbwallet/ledger.go
@@ -257,7 +257,9 @@ func (w *ledgerDriver) ledgerDerive(derivationPath []uint32) (common.Address, er
 
 	// Decode the hex sting into an Ethereum address and return
 	var address common.Address
-	hex.Decode(address[:], hexstr)
+	if _, err = hex.Decode(address[:], hexstr); err != nil {
+		return common.Address{}, err
+	}
 	return address, nil
 }