From cf68f216d9783041c8f33f5f2ede93ce16517e66 Mon Sep 17 00:00:00 2001
From: Chris Davis <chrisdavis@outlook.com>
Date: Thu, 15 Jun 2017 23:41:10 -0700
Subject: [PATCH] Fix infinite loop in image parser with zero sized files

---
 PIFShellExtensionsLib/PIFParser.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PIFShellExtensionsLib/PIFParser.cpp b/PIFShellExtensionsLib/PIFParser.cpp
index 9e3c392..81dbcb3 100644
--- a/PIFShellExtensionsLib/PIFParser.cpp
+++ b/PIFShellExtensionsLib/PIFParser.cpp
@@ -356,7 +356,7 @@ HRESULT CBaseImageParser::ReadLineFromStream(
         while (SUCCEEDED(hr) && IsWhitespace(chCurrent))
         {
             hr = IStream_Read(pStream, (void*)&chCurrent, sizeof(char));
-            if (IsWhitespace(chCurrent))
+            if (SUCCEEDED(hr) && IsWhitespace(chCurrent))
             {
                 // If we found leading white space chars we need to update
                 // our origin.