mod_callcenter: Possible fix on unload module freeze when an member uuid changed or is gone

src/mod/applications/mod_callcenter/mod_callcenter.c

@@ -2205,10 +2205,6 @@ void *SWITCH_THREAD_FUNC cc_member_thread_run(switch_thread_t *thread, void *obj
 	switch_core_session_t *member_session = switch_core_session_locate(m->member_session_uuid);
 	switch_channel_t *member_channel = NULL;
 
-	switch_mutex_lock(globals.mutex);
-	globals.threads++;
-	switch_mutex_unlock(globals.mutex);
-
 	if (member_session) {
 		member_channel = switch_core_session_get_channel(member_session);
 	} else {
@@ -2216,6 +2212,10 @@ void *SWITCH_THREAD_FUNC cc_member_thread_run(switch_thread_t *thread, void *obj
 		return NULL;
 	}
 
+	switch_mutex_lock(globals.mutex);
+	globals.threads++;
+	switch_mutex_unlock(globals.mutex);
+
 	while(switch_channel_ready(member_channel) && m->running && globals.running) {
 		cc_queue_t *queue = NULL;