From e855e8f7b4c40d7c140b758e7cc61c19c0e349b0 Mon Sep 17 00:00:00 2001
From: Michael Shuen <mz_mhs-ctb@outlook.com>
Date: Tue, 1 Jul 2014 08:36:00 -0400
Subject: [PATCH] Bug 1031920 - Stop leaking mDataPtr on failure in
 ArrayBufferBuilder::getArrayBuffer. r=smaug

---
 content/base/src/nsXMLHttpRequest.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/content/base/src/nsXMLHttpRequest.cpp b/content/base/src/nsXMLHttpRequest.cpp
index ec5874793f7..0d381c614d8 100644
--- a/content/base/src/nsXMLHttpRequest.cpp
+++ b/content/base/src/nsXMLHttpRequest.cpp
@@ -4065,12 +4065,11 @@ ArrayBufferBuilder::getArrayBuffer(JSContext* aCx)
   }
 
   JSObject* obj = JS_NewArrayBufferWithContents(aCx, mLength, mDataPtr);
-  mDataPtr = nullptr;
   mLength = mCapacity = 0;
   if (!obj) {
     js_free(mDataPtr);
-    return nullptr;
   }
+  mDataPtr = nullptr;
   return obj;
 }