Fix crash when event listener not created

9 years ago · 07e412c538
parent 15300cb681
commit 07e412c538
1 changed files with 3 additions and 1 deletions
--- a/visualizer.c
+++ b/visualizer.c
@ -458,8 +458,10 @@ void visualizer_init(void) {
 void update_status(bool changed) {
    if (changed) {
        GSourceListener* listener = geventGetSourceListener(layer_changed_event, NULL);
+        if (listener) {
            geventSendEvent(listener);
        }
+    }
 #ifdef USE_SERIAL_LINK
    static systime_t last_update = 0;
    systime_t current_update = chVTGetSystemTimeX();