From 4340841565e0fcbb788dd577b1f6b434f6121884 Mon Sep 17 00:00:00 2001
From: Stepan Hrbek <stepan.git@lightsprint.com>
Date: Thu, 28 Nov 2019 14:17:11 +0100
Subject: [PATCH] Fix uninitialized thread pointer in wxMSW wxJoystick

Initialize m_thread to null to ensure we don't dereference an invalid
pointer later if no joystick with the specified index was found.

Closes https://github.com/wxWidgets/wxWidgets/pull/1663
---
 src/msw/joystick.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/msw/joystick.cpp b/src/msw/joystick.cpp
index f9b7bc15c5..2cec62c58b 100644
--- a/src/msw/joystick.cpp
+++ b/src/msw/joystick.cpp
@@ -157,6 +157,7 @@ wxJoystick::wxJoystick(int joystick)
     JOYINFO joyInfo;
     int i, maxsticks;
 
+    m_thread = NULL;
     maxsticks = joyGetNumDevs();
     for( i=0; i<maxsticks; i++ )
     {