From aa1c7873c39964d063c89c14815e3fc566bbd896 Mon Sep 17 00:00:00 2001
From: Henrique Nakashima <hnakashima@chromium.org>
Date: Tue, 30 Jan 2018 19:12:10 +0000
Subject: Guard usages of tellp(). It may return -1 in error cases.

Change-Id: I064ddcad8671b9ade2c02142a6c2c2983846e3a9
Reviewed-on: https://pdfium-review.googlesource.com/24650
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
---
 fpdfsdk/cpdfsdk_interform.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'fpdfsdk')

diff --git a/fpdfsdk/cpdfsdk_interform.cpp b/fpdfsdk/cpdfsdk_interform.cpp
index 03a782b15b..3b76dca682 100644
--- a/fpdfsdk/cpdfsdk_interform.cpp
+++ b/fpdfsdk/cpdfsdk_interform.cpp
@@ -530,7 +530,7 @@ bool CPDFSDK_InterForm::FDFToURLEncodedData(uint8_t*& pBuf, size_t& nBufSize) {
   }
 
   nBufSize = fdfEncodedData.tellp();
-  if (nBufSize == 0)
+  if (nBufSize <= 0)
     return false;
 
   pBuf = FX_Alloc(uint8_t, nBufSize);
-- 
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