From 21f88ffe5c2c9fc7af9a7bcc4a654ad1008ab17e Mon Sep 17 00:00:00 2001
From: Andrew Weintraub <asweintraub@google.com>
Date: Wed, 10 May 2017 13:19:52 -0400
Subject: Fix FPDFImageObj_LoadJpegFile(Inline) to allow NULL to be passed in
 for pages, as the documentation explicitly allows this.

Bug:pdfium:710
Change-Id: I0535b45c16ae7a53609da3b09ff7d427c52567b5
Reviewed-on: https://pdfium-review.googlesource.com/5270
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
---
 fpdfsdk/fpdfeditimg.cpp | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/fpdfsdk/fpdfeditimg.cpp b/fpdfsdk/fpdfeditimg.cpp
index 1207ecf06d..6a300c9e62 100644
--- a/fpdfsdk/fpdfeditimg.cpp
+++ b/fpdfsdk/fpdfeditimg.cpp
@@ -20,16 +20,19 @@ bool LoadJpegHelper(FPDF_PAGE* pages,
                     FPDF_PAGEOBJECT image_object,
                     FPDF_FILEACCESS* fileAccess,
                     bool inlineJpeg) {
-  if (!image_object || !fileAccess || !pages)
+  if (!image_object || !fileAccess)
     return false;
 
   CFX_RetainPtr<IFX_SeekableReadStream> pFile =
       MakeSeekableReadStream(fileAccess);
   CPDF_ImageObject* pImgObj = reinterpret_cast<CPDF_ImageObject*>(image_object);
-  for (int index = 0; index < nCount; index++) {
-    CPDF_Page* pPage = CPDFPageFromFPDFPage(pages[index]);
-    if (pPage)
-      pImgObj->GetImage()->ResetCache(pPage, nullptr);
+
+  if (pages) {
+    for (int index = 0; index < nCount; index++) {
+      CPDF_Page* pPage = CPDFPageFromFPDFPage(pages[index]);
+      if (pPage)
+        pImgObj->GetImage()->ResetCache(pPage, nullptr);
+    }
   }
 
   if (inlineJpeg)
-- 
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