Reverted the change in cCondWait::SleepMs() because of a possible lockup

CONTRIBUTORS

@@ -2971,6 +2971,7 @@ Johann Friedrichs <johann.friedrichs@web.de>
  for reporting a bug in handling the tfRecording flag in the SVDRP commands MODT and UPDT
  for adding a missing '-D' to the 'plugins' target of the Makefile
  for adding code for the 'qks' audio track
+ for reporting a possible lockup in cCondWait::SleepMs()
 
 Timo Helkio <timolavi@mbnet.fi>
  for reporting a hangup when replaying a TS recording with subtitles activated

HISTORY

@@ -10166,3 +10166,5 @@ Video Disk Recorder Revision History
   APIVERSNUM is now 30009.
 - Fixed the stop time of repeating timers in case of DST change (thanks to Markus Ehrnsperger).
 - Fixed expiring VPS timers in case the event has not yet startet after its announced end time.
+- Reverted the change in cCondWait::SleepMs() because of a possible lockup (reported by Johann
+  Friedrichs).

thread.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: thread.c 5.4 2025/06/17 20:32:06 kls Exp $
+ * $Id: thread.c 5.5 2025/07/09 16:13:43 kls Exp $
  */
 
 #include "thread.h"
@@ -73,7 +73,7 @@ cCondWait::~cCondWait()
 void cCondWait::SleepMs(int TimeoutMs)
 {
   cCondWait w;
-  w.Wait(TimeoutMs);
+  w.Wait(max(TimeoutMs, 3)); // making sure the time is >2ms to avoid a possible busy wait
 }
 
 bool cCondWait::Wait(int TimeoutMs)