Now setting currentDisplayChannel = NULL before calling cStatus::MsgOsdClear() in ~cDisplayChannel(), to avoid possible problems in case a plugin calls IsOpen()

CONTRIBUTORS

@@ -3426,6 +3426,7 @@ Thomas Reufer <thomas@reufer.ch>
  for fixing regenerating the index of audio recordings
  for implementing the SVDRP commands 'LSTD' and 'PRIM'
  for adding some comments regarding font height
+ for reporting a possible problem with plugins calling IsOpen() in ~cDisplayChannel()
 
 Eike Sauer <EikeSauer@t-online.de>
  for reporting a problem with channels that need more than 5 TS packets for detecting

HISTORY

@@ -9499,8 +9499,11 @@ Video Disk Recorder Revision History
   rendered the whole code branch inactive. Now this branch is only executed for devices
   that are not bonded.
 
-2020-06-29:
+2020-07-01:
 
 - Improved deleting plugins in case the plugin uses its own memory management (thanks
   to Winfried K<>hler). Plugins that have been compiled with previous versions of VDR
   do not need to be recompiled, they will silently be handled as before.
+- Now setting currentDisplayChannel = NULL before calling cStatus::MsgOsdClear() in
+  ~cDisplayChannel(), to avoid possible problems in case a plugin calls IsOpen()
+  (reported by Thomas Reufer).

menu.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.c 4.82 2020/05/18 16:47:29 kls Exp $
+ * $Id: menu.c 4.83 2020/07/01 15:05:17 kls Exp $
  */
 
 #include "menu.h"
@@ -4686,8 +4686,8 @@ cDisplayChannel::cDisplayChannel(eKeys FirstKey)
 cDisplayChannel::~cDisplayChannel()
 {
   delete displayChannel;
-  cStatus::MsgOsdClear();
   currentDisplayChannel = NULL;
+  cStatus::MsgOsdClear();
 }
 
 void cDisplayChannel::DisplayChannel(void)