From 598be8bcfab23f5440c3848d0ab30e5f71deccd2 Mon Sep 17 00:00:00 2001
From: Davide Faletti <76700890+davide-faletti@users.noreply.github.com>
Date: Wed, 24 Jan 2024 14:41:11 +0100
Subject: [PATCH] fix(observer): fixed lv_subject_remove_all_obj (#5464)

---
 src/others/observer/lv_observer.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/others/observer/lv_observer.c b/src/others/observer/lv_observer.c
index 6298c8d521..10b3186d29 100644
--- a/src/others/observer/lv_observer.c
+++ b/src/others/observer/lv_observer.c
@@ -358,16 +358,24 @@ void lv_subject_remove_all_obj(lv_subject_t * subject, lv_obj_t * obj)
         LV_LOG_WARN("Subject not initialized yet");
         return;
     }
+
     while(lv_obj_remove_event_cb(obj, unsubscribe_on_delete_cb));
+
+#if LV_USE_BUTTON
     while(lv_obj_remove_event_cb(obj, btn_value_changed_event_cb));
+#endif /*LV_USE_BUTTON*/
+
+#if LV_USE_ARC
     while(lv_obj_remove_event_cb(obj, arc_value_changed_event_cb));
+#endif /*LV_USE_ARC*/
+
 #if LV_USE_ROLLER
     while(lv_obj_remove_event_cb(obj, roller_value_changed_event_cb));
-#endif
+#endif /*LV_USE_ROLLER*/
 
 #if LV_USE_DROPDOWN
     while(lv_obj_remove_event_cb(obj, dropdown_value_changed_event_cb));
-#endif
+#endif /*LV_USE_DROPDOWN*/
 
     lv_observer_t * observer = _lv_ll_get_head(&subject->subs_ll);
     while(observer) {