FS-3798 --resolve

src/mod/event_handlers/mod_event_socket/mod_event_socket.c

@@ -2468,6 +2468,7 @@ static void *SWITCH_THREAD_FUNC listener_run(switch_thread_t *thread, void *obj)
 	switch_channel_t *channel = NULL;
 	switch_event_t *revent = NULL;
 	const char *var;
+	int locked = 1;
 
 	switch_mutex_lock(globals.listener_mutex);
 	prefs.threads++;
@@ -2477,6 +2478,7 @@ static void *SWITCH_THREAD_FUNC listener_run(switch_thread_t *thread, void *obj)
 
 	if ((session = listener->session)) {
 		if (switch_core_session_read_lock(session) != SWITCH_STATUS_SUCCESS) {
+			locked = 0;
 			goto done;
 		}
 	}
@@ -2655,7 +2657,9 @@ static void *SWITCH_THREAD_FUNC listener_run(switch_thread_t *thread, void *obj)
 	if (listener->session) {
 		switch_channel_clear_flag(switch_core_session_get_channel(listener->session), CF_CONTROLLED);
 		switch_clear_flag_locked(listener, LFLAG_SESSION);
-		switch_core_session_rwunlock(listener->session);
+		if (locked) {
+			switch_core_session_rwunlock(listener->session);
+		}
 	} else if (listener->pool) {
 		switch_memory_pool_t *pool = listener->pool;
 		switch_core_destroy_memory_pool(&pool);