File _service:tar_git:0007-Check-for-object-validity-in-macros.patch of Package kf5bluezqt

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Bea Lam <bea.lam@jollamobile.com>
Date: Sat, 26 Nov 2016 17:20:10 +1000
Subject: [PATCH] Check for object validity in macros

If an application connects to both the statusChanged and
transferredChanged signals for a transfer, and removes its reference to
the Transfer object when statusChanged=Complete, the application
crashes as ObexTransferPrivate::propertiesChanged() attempts to emit
the transferredChanged signal immediately after the statusChanged
signal, and q.data() is no longer valid. To avoid this, check for the
validity of q.data() in macros.h. For completeness, update
macros_bluez4.h to check for the validity of obj.
---
 src/bluez4/macros_bluez4_p.h |  4 +++-
 src/macros.h                 | 12 +++++++++---
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/bluez4/macros_bluez4_p.h b/src/bluez4/macros_bluez4_p.h
index cb1808c..adca81c 100644
--- a/src/bluez4/macros_bluez4_p.h
+++ b/src/bluez4/macros_bluez4_p.h
@@ -31,7 +31,9 @@
     } else { \
         invalidated << property; \
     } \
-    obj->propertiesChanged(interface, changed, invalidated); \
+    if (obj) { \
+        obj->propertiesChanged(interface, changed, invalidated); \
+    } \
 }
 
 #endif // BLUEZQT_MACROS_H
diff --git a/src/macros.h b/src/macros.h
index 9b6c6f3..bdbe70d 100644
--- a/src/macros.h
+++ b/src/macros.h
@@ -27,21 +27,27 @@
 #define PROPERTY_CHANGED(var, type_cast, signal) \
     if (var != value.type_cast()) { \
         var = value.type_cast(); \
-        Q_EMIT q.data()->signal(var); \
+        if (q.data()) { \
+            Q_EMIT q.data()->signal(var); \
+        } \
     }
 
 #define PROPERTY_CHANGED2(var, value, signal) \
     const auto &val = value; \
     if (var != val) { \
         var = val; \
-        Q_EMIT q.data()->signal(var); \
+        if (q.data()) { \
+            Q_EMIT q.data()->signal(var); \
+        } \
     }
 
 // Clears property value and emit propertyChanged signal
 #define PROPERTY_INVALIDATED(var, empty, signal) \
     if (var != empty) { \
         var = empty; \
-        Q_EMIT q.data()->signal(var); \
+        if (q.data()) { \
+            Q_EMIT q.data()->signal(var); \
+        } \
     }
 
 #endif // BLUEZQT_MACROS_H
-- 
2.33.1