Fixed a possible crash when shutting down VDR while subtitles are being displayed

CONTRIBUTORS

@@ -2017,6 +2017,8 @@ Ville Skytt
  be escaped
  for changing the template for PLGCFG to $(CONFDIR)/plugins.mk
  for updating the help and man page entry about the location of the epg.data file
+ for reporting a possible crash when shutting down VDR while subtitles are being
+ displayed
 
 Steffen Beyer <cpunk@reactor.de>
  for fixing setting the colored button help after deleting a recording in case the next

HISTORY

@@ -7819,3 +7819,5 @@ Video Disk Recorder Revision History
 - No longer trying to delete old recordings in AssertFreeDiskSpace() if the given
   Priority is less than 1.
 - Fixed handling LIRC events in case repeated events are lost.
+- Fixed a possible crash when shutting down VDR while subtitles are being displayed
+  (reported by Ville Skyttä).

device.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: device.c 2.74.1.1 2013/04/05 10:47:38 kls Exp $
+ * $Id: device.c 2.74.1.2 2013/08/22 10:35:30 kls Exp $
  */
 
 #include "device.h"
@@ -118,6 +118,8 @@ cDevice::~cDevice()
   DetachAllReceivers();
   delete liveSubtitle;
   delete dvbSubtitleConverter;
+  if (this == primaryDevice)
+     primaryDevice = NULL;
 }
 
 bool cDevice::WaitForAllDevicesReady(int Timeout)
@@ -362,7 +364,6 @@ void cDevice::SetCamSlot(cCamSlot *CamSlot)
 void cDevice::Shutdown(void)
 {
   deviceHooks.Clear();
-  primaryDevice = NULL;
   for (int i = 0; i < numDevices; i++) {
       delete device[i];
       device[i] = NULL;