From e46df080ee68c2be7b5abe8bb30ae615c333aa27 Mon Sep 17 00:00:00 2001
From: Christian Kandeler <christian.kandeler@qt.io>
Date: Wed, 12 Feb 2020 15:32:52 +0100
Subject: [PATCH] QmakeProjectManager: Fix null pointer access

Amends c7d8b9b01c.

Fixes: QTCREATORBUG-23596
Change-Id: I466907e02572008d0e677ff29ecd712969f8bc54
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: hjk <hjk@qt.io>
---
 .../qmakeprojectmanager/qmakeparsernodes.cpp        | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/plugins/qmakeprojectmanager/qmakeparsernodes.cpp b/src/plugins/qmakeprojectmanager/qmakeparsernodes.cpp
index e4a6635b3b5..f3d20cb8941 100644
--- a/src/plugins/qmakeprojectmanager/qmakeparsernodes.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakeparsernodes.cpp
@@ -1203,12 +1203,13 @@ QmakeProFile::QmakeProFile(const FilePath &filePath) : QmakePriFile(filePath) {
 QmakeProFile::~QmakeProFile()
 {
     qDeleteAll(m_extraCompilers);
-    m_parseFutureWatcher->cancel();
-    m_parseFutureWatcher->waitForFinished();
-    if (m_readerExact)
-        applyAsyncEvaluate();
-    delete m_parseFutureWatcher;
-
+    if (m_parseFutureWatcher) {
+        m_parseFutureWatcher->cancel();
+        m_parseFutureWatcher->waitForFinished();
+        if (m_readerExact)
+            applyAsyncEvaluate();
+        delete m_parseFutureWatcher;
+    }
     cleanupProFileReaders();
 }