lib: Free io_switch_callbacks_free only after other atexit-callbacks

Fixes a crash at deinit where io_loop_remove_switch_callback() was called in
lib_atexit() callback.

diff --git a/src/lib/ioloop.c b/src/lib/ioloop.c
index 977774afadf1bdd8e003e5210dffb4efa8617c0d..f6bd7ab8454a00790d846c24ad244855668f507d 100644 (file)
--- a/src/lib/ioloop.c
+++ b/src/lib/ioloop.c
@@ -839,7 +839,7 @@ void io_loop_add_switch_callback(io_switch_callback_t *callback)
 {
        if (!array_is_created(&io_switch_callbacks)) {
                i_array_init(&io_switch_callbacks, 4);
-               lib_atexit(io_switch_callbacks_free);
+               lib_atexit_priority(io_switch_callbacks_free, LIB_ATEXIT_PRIORITY_LOW);
        }
        array_append(&io_switch_callbacks, &callback, 1);
 }