From 3f9ba9c07322d90f8f918d9e144e84d422e4cfbd Mon Sep 17 00:00:00 2001
From: Christian Wassmuth <c.wassmuth@oculus.de>
Date: Tue, 5 Mar 2019 12:53:19 +0100
Subject: Bluez-DBus: Fix crash at calling disconnect while not connected

Calling disconnectFromDevice() while not connected or in ClosingState
caused a crash on accessing device which is null.

[ChangeLog][QtBluetooth][Bluez-DBus] Fix crash at calling
QLowEnergyController::disconnectFromDevice while not connected

Change-Id: I5979e3e5fca62c4a1469014e4f553c7db24f8dac
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
---
 src/bluetooth/qlowenergycontroller_bluezdbus.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/bluetooth/qlowenergycontroller_bluezdbus.cpp b/src/bluetooth/qlowenergycontroller_bluezdbus.cpp
index 441eca6b..f019d9c2 100644
--- a/src/bluetooth/qlowenergycontroller_bluezdbus.cpp
+++ b/src/bluetooth/qlowenergycontroller_bluezdbus.cpp
@@ -350,6 +350,9 @@ void QLowEnergyControllerPrivateBluezDBus::connectToDevice()
 
 void QLowEnergyControllerPrivateBluezDBus::disconnectFromDevice()
 {
+    if (!device)
+        return;
+
     setState(QLowEnergyController::ClosingState);
 
     QDBusPendingReply<> reply = device->Disconnect();
-- 
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