Fixed bug 3411207

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3360 35acf78f-673a-0410-8e92-d51de3d6d3f4

os/kernel/src/chthreads.c

@@ -353,6 +353,7 @@ void chThdExit(msg_t msg) {
     REG_REMOVE(tp);
 #endif
   chSchGoSleepS(THD_STATE_FINAL);
+  chSysUnlock();
 }
 
 #if CH_USE_WAITEXIT || defined(__DOXYGEN__)

os/various/shell.c

@@ -206,6 +206,7 @@ static msg_t shell_thread(void *p) {
   }
   chSysLock();
   chEvtBroadcastI(&shell_terminated);
+  chSysUnlock();
   return msg;
 }