From 22973db5032189f97bf8ad190981d71c890bf151 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <email@mattatobin.com>
Date: Sun, 10 Nov 2019 23:34:36 -0500
Subject: Bug 1517464 - Fix crash in SMTP DTOR by properly initializing/testing
 pointer.

Tag #1273
---
 mailnews/compose/src/nsSmtpProtocol.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'mailnews/compose/src/nsSmtpProtocol.cpp')

diff --git a/mailnews/compose/src/nsSmtpProtocol.cpp b/mailnews/compose/src/nsSmtpProtocol.cpp
index 522890c78..89607224e 100644
--- a/mailnews/compose/src/nsSmtpProtocol.cpp
+++ b/mailnews/compose/src/nsSmtpProtocol.cpp
@@ -229,13 +229,14 @@ NS_INTERFACE_MAP_END_INHERITING(nsMsgAsyncWriteProtocol)
 #endif
 nsSmtpProtocol::nsSmtpProtocol(nsIURI * aURL)
     : nsMsgAsyncWriteProtocol(aURL)
+    , m_dataBuf(nullptr)
 {
 }
 
 nsSmtpProtocol::~nsSmtpProtocol()
 {
   // free our local state
-  PR_Free(m_dataBuf);
+  PR_FREEIF(m_dataBuf);
 }
 
 void nsSmtpProtocol::Initialize(nsIURI * aURL)
-- 
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