From 03096150c626066bedf451846e6dbedd995df1aa Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Sat, 9 Jun 2018 20:49:05 +0100
Subject: [PATCH] device_ledger: fix bad memory access on connect error

---
 src/device/device_ledger.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/device/device_ledger.cpp b/src/device/device_ledger.cpp
index 3b9ab6744..641fe74c3 100644
--- a/src/device/device_ledger.cpp
+++ b/src/device/device_ledger.cpp
@@ -396,7 +396,7 @@ namespace hw {
         }
       }
 
-      if (mszReaders) {
+      if (rv == SCARD_S_SUCCESS && mszReaders) {
         #ifdef SCARD_AUTOALLOCATE
         SCardFreeMemory(this->hContext, mszReaders);
         #else