Improved the error message when closing a frontend

CONTRIBUTORS

@@ -2580,6 +2580,7 @@ Markus Ehrnsperger <markus.ehrnsperger@googlemail.com>
  different lengths
  for suggesting to add the lines from 'Fixed a timeout in cDvbDevice while tuning after
  the frontend has been reopened' to cDvbTuner::ProvidesFrontend()
+ for improving the error message when closing a frontend
 
 Werner Färber <w.faerber@gmx.de>
  for reporting a bug in handling the cPluginManager::Active() result when pressing

HISTORY

@@ -9952,7 +9952,7 @@ Video Disk Recorder Revision History
 - Added the lines from 'Fixed a timeout in cDvbDevice while tuning after the frontend
   has been reopened' to cDvbTuner::ProvidesFrontend() (suggested by Markus Ehrnsperger).
 
-2024-09-01:
+2024-09-09:
 
 - Removed deprecated function cDevice::SetCurrentChannel(const cChannel *Channel).
 - Removed deprecated function cSkinDisplayMenu::SetItemEvent(const cEvent *Event, int Index,
@@ -9979,3 +9979,4 @@ Video Disk Recorder Revision History
 - Fixed a crash when deleting a recording that is currently being edited, and then
   immediately deleting the edited version, too (reported by Marko Mäkelä).
 - The '.update' file in the video directory is now created if it doesn't already exist.
+- Improved the error message when closing a frontend (thanks to Markus Ehrnsperger).

dvbdevice.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbdevice.c 5.7 2024/07/14 15:41:01 kls Exp $
+ * $Id: dvbdevice.c 5.8 2024/09/09 08:53:57 kls Exp $
  */
 
 #include "dvbdevice.h"
@@ -394,7 +394,7 @@ void cDvbFrontend::Close(void)
 {
   if (fd_frontend >= 0) {
      if (close(fd_frontend) != 0)
-        esyslog("ERROR: frontend %d/%d", adapter, frontend);
+        esyslog("ERROR: frontend %d/%d: %m (%s:%d)", adapter, frontend, __FILE__, __LINE__);
      fd_frontend = -1;
      }
 }