diff --git a/legacy/elementary/src/lib/elc_ctxpopup.c b/legacy/elementary/src/lib/elc_ctxpopup.c
index d67a8945af..2662a01c56 100644
--- a/legacy/elementary/src/lib/elc_ctxpopup.c
+++ b/legacy/elementary/src/lib/elc_ctxpopup.c
@@ -1153,8 +1153,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elc_fileselector.c b/legacy/elementary/src/lib/elc_fileselector.c
index 68baa04495..f1fecf9246 100644
--- a/legacy/elementary/src/lib/elc_fileselector.c
+++ b/legacy/elementary/src/lib/elc_fileselector.c
@@ -914,9 +914,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elc_fileselector_button.c b/legacy/elementary/src/lib/elc_fileselector_button.c
index de244e93e3..549d75ac2d 100644
--- a/legacy/elementary/src/lib/elc_fileselector_button.c
+++ b/legacy/elementary/src/lib/elc_fileselector_button.c
@@ -218,9 +218,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elc_fileselector_entry.c b/legacy/elementary/src/lib/elc_fileselector_entry.c
index db063564dc..b3a57f24e2 100644
--- a/legacy/elementary/src/lib/elc_fileselector_entry.c
+++ b/legacy/elementary/src/lib/elc_fileselector_entry.c
@@ -417,8 +417,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elc_hoversel.c b/legacy/elementary/src/lib/elc_hoversel.c
index 3c5caa45b7..bc9faa4647 100644
--- a/legacy/elementary/src/lib/elc_hoversel.c
+++ b/legacy/elementary/src/lib/elc_hoversel.c
@@ -264,9 +264,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elc_multibuttonentry.c b/legacy/elementary/src/lib/elc_multibuttonentry.c
index 81763e3465..82d672f43b 100644
--- a/legacy/elementary/src/lib/elc_multibuttonentry.c
+++ b/legacy/elementary/src/lib/elc_multibuttonentry.c
@@ -1674,8 +1674,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Evas_Object *
diff --git a/legacy/elementary/src/lib/elc_naviframe.c b/legacy/elementary/src/lib/elc_naviframe.c
index e2410f4f13..1943780f7d 100644
--- a/legacy/elementary/src/lib/elc_naviframe.c
+++ b/legacy/elementary/src/lib/elc_naviframe.c
@@ -1283,8 +1283,7 @@ _elm_naviframe_smart_add(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
                                   _on_obj_size_hints_changed, obj);
    elm_widget_can_focus_set(obj, EINA_TRUE);
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 static Eina_Bool
diff --git a/legacy/elementary/src/lib/elc_player.c b/legacy/elementary/src/lib/elc_player.c
index 2e6257ae0c..7fe372ef87 100644
--- a/legacy/elementary/src/lib/elc_player.c
+++ b/legacy/elementary/src/lib/elc_player.c
@@ -580,9 +580,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-      ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 #else
    eo_error_set(obj);
 #endif
diff --git a/legacy/elementary/src/lib/elc_popup.c b/legacy/elementary/src/lib/elc_popup.c
index 045b9acb08..74b3ff3a39 100644
--- a/legacy/elementary/src/lib/elc_popup.c
+++ b/legacy/elementary/src/lib/elc_popup.c
@@ -1453,8 +1453,7 @@ _elm_popup_smart_add(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
      (wd->resize_obj, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
    evas_object_size_hint_align_set
      (wd->resize_obj, EVAS_HINT_FILL, EVAS_HINT_FILL);
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 
    if (!elm_layout_theme_set(obj, "popup", "base", elm_widget_style_get(obj)))
      CRITICAL("Failed to set layout!");
diff --git a/legacy/elementary/src/lib/elm_access.c b/legacy/elementary/src/lib/elm_access.c
index 5c170fae41..a672beeff6 100644
--- a/legacy/elementary/src/lib/elm_access.c
+++ b/legacy/elementary/src/lib/elm_access.c
@@ -918,9 +918,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Evas_Object *
diff --git a/legacy/elementary/src/lib/elm_actionslider.c b/legacy/elementary/src/lib/elm_actionslider.c
index 3aa218a729..ee7a9bff1a 100644
--- a/legacy/elementary/src/lib/elm_actionslider.c
+++ b/legacy/elementary/src/lib/elm_actionslider.c
@@ -441,9 +441,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_bg.c b/legacy/elementary/src/lib/elm_bg.c
index 7accd31b78..6260224e3a 100644
--- a/legacy/elementary/src/lib/elm_bg.c
+++ b/legacy/elementary/src/lib/elm_bg.c
@@ -103,10 +103,7 @@ _elm_bg_smart_add(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
 
    eo_do_super(obj, MY_CLASS, evas_obj_smart_add());
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
-
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
    elm_widget_can_focus_set(obj, EINA_FALSE);
 
    priv->option = ELM_BG_OPTION_SCALE;
diff --git a/legacy/elementary/src/lib/elm_box.c b/legacy/elementary/src/lib/elm_box.c
index 61efce41f1..9e8dfc75cd 100644
--- a/legacy/elementary/src/lib/elm_box.c
+++ b/legacy/elementary/src/lib/elm_box.c
@@ -462,8 +462,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_bubble.c b/legacy/elementary/src/lib/elm_bubble.c
index 7a651da84f..3af00fb335 100644
--- a/legacy/elementary/src/lib/elm_bubble.c
+++ b/legacy/elementary/src/lib/elm_bubble.c
@@ -250,9 +250,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_button.c b/legacy/elementary/src/lib/elm_button.c
index ec30cba3c9..869b110223 100644
--- a/legacy/elementary/src/lib/elm_button.c
+++ b/legacy/elementary/src/lib/elm_button.c
@@ -294,9 +294,7 @@ _elm_button_smart_add(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
 
    eo_do_super(obj, MY_CLASS, evas_obj_smart_add());
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 
    edje_object_signal_callback_add
      (wd->resize_obj, "elm,action,click", "",
diff --git a/legacy/elementary/src/lib/elm_calendar.c b/legacy/elementary/src/lib/elm_calendar.c
index de9a8ada46..b7d4287173 100644
--- a/legacy/elementary/src/lib/elm_calendar.c
+++ b/legacy/elementary/src/lib/elm_calendar.c
@@ -1181,9 +1181,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_check.c b/legacy/elementary/src/lib/elm_check.c
index 2558c4e8bf..9f07db3f25 100644
--- a/legacy/elementary/src/lib/elm_check.c
+++ b/legacy/elementary/src/lib/elm_check.c
@@ -345,9 +345,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_clock.c b/legacy/elementary/src/lib/elm_clock.c
index 37a50f31de..9b7a4ba5b9 100644
--- a/legacy/elementary/src/lib/elm_clock.c
+++ b/legacy/elementary/src/lib/elm_clock.c
@@ -830,9 +830,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 static void
diff --git a/legacy/elementary/src/lib/elm_colorselector.c b/legacy/elementary/src/lib/elm_colorselector.c
index 02c809a442..9321ca3521 100644
--- a/legacy/elementary/src/lib/elm_colorselector.c
+++ b/legacy/elementary/src/lib/elm_colorselector.c
@@ -1772,9 +1772,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_conform.c b/legacy/elementary/src/lib/elm_conform.c
index 76fe7e459e..aa5ef144e2 100644
--- a/legacy/elementary/src/lib/elm_conform.c
+++ b/legacy/elementary/src/lib/elm_conform.c
@@ -985,9 +985,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 
    Elm_Conformant_Smart_Data *sd = _pd;
 
diff --git a/legacy/elementary/src/lib/elm_datetime.c b/legacy/elementary/src/lib/elm_datetime.c
index 12724d2ae1..663220e3b5 100644
--- a/legacy/elementary/src/lib/elm_datetime.c
+++ b/legacy/elementary/src/lib/elm_datetime.c
@@ -850,9 +850,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI const char *
diff --git a/legacy/elementary/src/lib/elm_dayselector.c b/legacy/elementary/src/lib/elm_dayselector.c
index ded2350516..5d61b4d60b 100644
--- a/legacy/elementary/src/lib/elm_dayselector.c
+++ b/legacy/elementary/src/lib/elm_dayselector.c
@@ -473,9 +473,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_diskselector.c b/legacy/elementary/src/lib/elm_diskselector.c
index 69aef041e3..bf52f0c4bd 100644
--- a/legacy/elementary/src/lib/elm_diskselector.c
+++ b/legacy/elementary/src/lib/elm_diskselector.c
@@ -1468,9 +1468,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Eina_Bool
diff --git a/legacy/elementary/src/lib/elm_entry.c b/legacy/elementary/src/lib/elm_entry.c
index 253a3fc7ef..aa16c4dd0f 100644
--- a/legacy/elementary/src/lib/elm_entry.c
+++ b/legacy/elementary/src/lib/elm_entry.c
@@ -3094,9 +3094,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_flip.c b/legacy/elementary/src/lib/elm_flip.c
index 223ad516ec..adf3024ee2 100644
--- a/legacy/elementary/src/lib/elm_flip.c
+++ b/legacy/elementary/src/lib/elm_flip.c
@@ -1871,8 +1871,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Eina_Bool
diff --git a/legacy/elementary/src/lib/elm_flipselector.c b/legacy/elementary/src/lib/elm_flipselector.c
index daecc9f9a6..e23cc239d2 100644
--- a/legacy/elementary/src/lib/elm_flipselector.c
+++ b/legacy/elementary/src/lib/elm_flipselector.c
@@ -611,9 +611,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_frame.c b/legacy/elementary/src/lib/elm_frame.c
index 4ad00eb668..9d0875d2a7 100644
--- a/legacy/elementary/src/lib/elm_frame.c
+++ b/legacy/elementary/src/lib/elm_frame.c
@@ -217,9 +217,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_gengrid.c b/legacy/elementary/src/lib/elm_gengrid.c
index 57b8d78e6d..dd1d7895cc 100644
--- a/legacy/elementary/src/lib/elm_gengrid.c
+++ b/legacy/elementary/src/lib/elm_gengrid.c
@@ -2534,9 +2534,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_genlist.c b/legacy/elementary/src/lib/elm_genlist.c
index 47c05db5f1..d9317c3bf9 100644
--- a/legacy/elementary/src/lib/elm_genlist.c
+++ b/legacy/elementary/src/lib/elm_genlist.c
@@ -4915,9 +4915,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 static void
diff --git a/legacy/elementary/src/lib/elm_gesture_layer.c b/legacy/elementary/src/lib/elm_gesture_layer.c
index 2349739cd8..c19e498596 100644
--- a/legacy/elementary/src/lib/elm_gesture_layer.c
+++ b/legacy/elementary/src/lib/elm_gesture_layer.c
@@ -3659,8 +3659,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do_super(obj, MY_CLASS, eo_constructor());
    eo_do(obj, evas_obj_type_set(MY_CLASS_NAME));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Eina_Bool
diff --git a/legacy/elementary/src/lib/elm_glview.c b/legacy/elementary/src/lib/elm_glview.c
index 29ed414d86..e181b782ab 100644
--- a/legacy/elementary/src/lib/elm_glview.c
+++ b/legacy/elementary/src/lib/elm_glview.c
@@ -291,8 +291,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
         return;
      }
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Evas_GL_API *
diff --git a/legacy/elementary/src/lib/elm_grid.c b/legacy/elementary/src/lib/elm_grid.c
index d456305d62..e1a22b32bd 100644
--- a/legacy/elementary/src/lib/elm_grid.c
+++ b/legacy/elementary/src/lib/elm_grid.c
@@ -176,8 +176,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do_super(obj, MY_CLASS, eo_constructor());
    eo_do(obj, evas_obj_type_set(MY_CLASS_NAME));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_hover.c b/legacy/elementary/src/lib/elm_hover.c
index 92e058dc29..5f63480e19 100644
--- a/legacy/elementary/src/lib/elm_hover.c
+++ b/legacy/elementary/src/lib/elm_hover.c
@@ -648,9 +648,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_icon.c b/legacy/elementary/src/lib/elm_icon.c
index 2075ce336c..ef04191188 100644
--- a/legacy/elementary/src/lib/elm_icon.c
+++ b/legacy/elementary/src/lib/elm_icon.c
@@ -759,8 +759,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Eina_Bool
diff --git a/legacy/elementary/src/lib/elm_image.c b/legacy/elementary/src/lib/elm_image.c
index 4cf3bb86e6..535e50caf3 100644
--- a/legacy/elementary/src/lib/elm_image.c
+++ b/legacy/elementary/src/lib/elm_image.c
@@ -1103,8 +1103,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Eina_Bool
diff --git a/legacy/elementary/src/lib/elm_index.c b/legacy/elementary/src/lib/elm_index.c
index dec16947e2..92c702088e 100644
--- a/legacy/elementary/src/lib/elm_index.c
+++ b/legacy/elementary/src/lib/elm_index.c
@@ -1117,8 +1117,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_inwin.c b/legacy/elementary/src/lib/elm_inwin.c
index 55616979fd..88468786a2 100644
--- a/legacy/elementary/src/lib/elm_inwin.c
+++ b/legacy/elementary/src/lib/elm_inwin.c
@@ -120,8 +120,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do_super(obj, MY_CLASS, eo_constructor());
    eo_do(obj, evas_obj_type_set(MY_CLASS_NAME));
 
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(parent, obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_label.c b/legacy/elementary/src/lib/elm_label.c
index 90deac4ee6..2616697970 100644
--- a/legacy/elementary/src/lib/elm_label.c
+++ b/legacy/elementary/src/lib/elm_label.c
@@ -378,9 +378,7 @@ _elm_label_smart_add(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
 
    eo_do_super(obj, MY_CLASS, evas_obj_smart_add());
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 
    priv->linewrap = ELM_WRAP_NONE;
    priv->wrap_w = -1;
diff --git a/legacy/elementary/src/lib/elm_layout.c b/legacy/elementary/src/lib/elm_layout.c
index 06a7b6f805..4049bd5698 100644
--- a/legacy/elementary/src/lib/elm_layout.c
+++ b/legacy/elementary/src/lib/elm_layout.c
@@ -797,10 +797,7 @@ _elm_layout_smart_content_set(Eo *obj, void *_pd, va_list *list)
    if (content)
      {
         if (!elm_widget_sub_object_add(obj, content))
-          {
-             ERR("could not add %p as sub object of %p", content, obj);
-             return;
-          }
+          return;
 
         if (!edje_object_part_swallow
               (wd->resize_obj, part, content))
@@ -914,7 +911,6 @@ _elm_layout_smart_box_append(Eo *obj, void *_pd, va_list *list)
 
    if (!elm_widget_sub_object_add(obj, child))
      {
-        ERR("could not add %p as sub object of %p", child, obj);
         edje_object_part_box_remove
           (wd->resize_obj, part, child);
         return;
@@ -955,7 +951,6 @@ _elm_layout_smart_box_prepend(Eo *obj, void *_pd, va_list *list)
 
    if (!elm_widget_sub_object_add(obj, child))
      {
-        ERR("could not add %p as sub object of %p", child, obj);
         edje_object_part_box_remove
           (wd->resize_obj, part, child);
         return;
@@ -1008,7 +1003,6 @@ _elm_layout_smart_box_insert_before(Eo *obj, void *_pd, va_list *list)
 
    if (!elm_widget_sub_object_add(obj, child))
      {
-        ERR("could not add %p as sub object of %p", child, obj);
         edje_object_part_box_remove
           (wd->resize_obj, part, child);
         return;
@@ -1055,7 +1049,6 @@ _elm_layout_smart_box_insert_at(Eo *obj, void *_pd, va_list *list)
 
    if (!elm_widget_sub_object_add(obj, child))
      {
-        ERR("could not add %p as sub object of %p", child, obj);
         edje_object_part_box_remove
           (wd->resize_obj, part, child);
         return;
@@ -1212,7 +1205,6 @@ _elm_layout_smart_table_pack(Eo *obj, void *_pd, va_list *list)
 
    if (!elm_widget_sub_object_add(obj, child))
      {
-        ERR("could not add %p as sub object of %p", child, obj);
         edje_object_part_table_unpack
           (wd->resize_obj, part, child);
         return;
@@ -2157,8 +2149,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 static void
diff --git a/legacy/elementary/src/lib/elm_list.c b/legacy/elementary/src/lib/elm_list.c
index 382db09e37..f9bfcdd5f8 100644
--- a/legacy/elementary/src/lib/elm_list.c
+++ b/legacy/elementary/src/lib/elm_list.c
@@ -1755,9 +1755,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_map.c b/legacy/elementary/src/lib/elm_map.c
index cb7121a852..99de4b9280 100644
--- a/legacy/elementary/src/lib/elm_map.c
+++ b/legacy/elementary/src/lib/elm_map.c
@@ -4199,9 +4199,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 #else
    eo_error_set(obj);
 #endif
diff --git a/legacy/elementary/src/lib/elm_mapbuf.c b/legacy/elementary/src/lib/elm_mapbuf.c
index 7f2598a64f..3a6157d72c 100644
--- a/legacy/elementary/src/lib/elm_mapbuf.c
+++ b/legacy/elementary/src/lib/elm_mapbuf.c
@@ -266,8 +266,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_menu.c b/legacy/elementary/src/lib/elm_menu.c
index 2dcccc4ed9..c42e3d0eea 100644
--- a/legacy/elementary/src/lib/elm_menu.c
+++ b/legacy/elementary/src/lib/elm_menu.c
@@ -678,8 +678,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 
    elm_menu_parent_set(obj, eo_parent_get(obj));
    elm_hover_target_set(sd->hv, sd->location);
diff --git a/legacy/elementary/src/lib/elm_notify.c b/legacy/elementary/src/lib/elm_notify.c
index 365fd6201e..ccc036a9f1 100644
--- a/legacy/elementary/src/lib/elm_notify.c
+++ b/legacy/elementary/src/lib/elm_notify.c
@@ -486,8 +486,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_panel.c b/legacy/elementary/src/lib/elm_panel.c
index 10760e6d72..dd12461bc0 100644
--- a/legacy/elementary/src/lib/elm_panel.c
+++ b/legacy/elementary/src/lib/elm_panel.c
@@ -414,8 +414,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME));
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_panes.c b/legacy/elementary/src/lib/elm_panes.c
index bb91377c8b..ee9aabc06f 100644
--- a/legacy/elementary/src/lib/elm_panes.c
+++ b/legacy/elementary/src/lib/elm_panes.c
@@ -228,9 +228,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EINA_DEPRECATED EAPI void
diff --git a/legacy/elementary/src/lib/elm_photocam.c b/legacy/elementary/src/lib/elm_photocam.c
index 71c386c956..e59b66a27d 100644
--- a/legacy/elementary/src/lib/elm_photocam.c
+++ b/legacy/elementary/src/lib/elm_photocam.c
@@ -1443,9 +1443,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Evas_Load_Error
diff --git a/legacy/elementary/src/lib/elm_plug.c b/legacy/elementary/src/lib/elm_plug.c
index ba259fd906..d48a9b947d 100644
--- a/legacy/elementary/src/lib/elm_plug.c
+++ b/legacy/elementary/src/lib/elm_plug.c
@@ -124,9 +124,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Evas_Object *
diff --git a/legacy/elementary/src/lib/elm_prefs.c b/legacy/elementary/src/lib/elm_prefs.c
index cb3983ea47..f235ba2f69 100644
--- a/legacy/elementary/src/lib/elm_prefs.c
+++ b/legacy/elementary/src/lib/elm_prefs.c
@@ -527,10 +527,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_smart_callbacks_descriptions_set(_elm_prefs_smart_callbacks,
                                                    NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 static Eina_Bool
diff --git a/legacy/elementary/src/lib/elm_progressbar.c b/legacy/elementary/src/lib/elm_progressbar.c
index 411301a78b..3cd0bee120 100644
--- a/legacy/elementary/src/lib/elm_progressbar.c
+++ b/legacy/elementary/src/lib/elm_progressbar.c
@@ -312,9 +312,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_radio.c b/legacy/elementary/src/lib/elm_radio.c
index cf507e31a7..7ebd092a47 100644
--- a/legacy/elementary/src/lib/elm_radio.c
+++ b/legacy/elementary/src/lib/elm_radio.c
@@ -334,9 +334,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_route.c b/legacy/elementary/src/lib/elm_route.c
index c7354e9f5a..b6fe1bf07c 100644
--- a/legacy/elementary/src/lib/elm_route.c
+++ b/legacy/elementary/src/lib/elm_route.c
@@ -189,8 +189,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do_super(obj, MY_CLASS, eo_constructor());
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME));
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 #ifdef ELM_EMAP
diff --git a/legacy/elementary/src/lib/elm_scroller.c b/legacy/elementary/src/lib/elm_scroller.c
index bfac38287b..39a581adca 100644
--- a/legacy/elementary/src/lib/elm_scroller.c
+++ b/legacy/elementary/src/lib/elm_scroller.c
@@ -841,9 +841,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 /* deprecated */
diff --git a/legacy/elementary/src/lib/elm_segment_control.c b/legacy/elementary/src/lib/elm_segment_control.c
index ecef2a53cc..c10a953171 100644
--- a/legacy/elementary/src/lib/elm_segment_control.c
+++ b/legacy/elementary/src/lib/elm_segment_control.c
@@ -699,9 +699,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Elm_Object_Item *
diff --git a/legacy/elementary/src/lib/elm_separator.c b/legacy/elementary/src/lib/elm_separator.c
index 3d28e3910b..0e1e1a2c7a 100644
--- a/legacy/elementary/src/lib/elm_separator.c
+++ b/legacy/elementary/src/lib/elm_separator.c
@@ -73,9 +73,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_slider.c b/legacy/elementary/src/lib/elm_slider.c
index 2878416613..cc8d81ec28 100644
--- a/legacy/elementary/src/lib/elm_slider.c
+++ b/legacy/elementary/src/lib/elm_slider.c
@@ -872,9 +872,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_slideshow.c b/legacy/elementary/src/lib/elm_slideshow.c
index 58c489c4df..fcc07a5e4d 100644
--- a/legacy/elementary/src/lib/elm_slideshow.c
+++ b/legacy/elementary/src/lib/elm_slideshow.c
@@ -377,9 +377,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Elm_Object_Item *
diff --git a/legacy/elementary/src/lib/elm_spinner.c b/legacy/elementary/src/lib/elm_spinner.c
index db31af28a0..f0a97d5184 100644
--- a/legacy/elementary/src/lib/elm_spinner.c
+++ b/legacy/elementary/src/lib/elm_spinner.c
@@ -805,9 +805,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_table.c b/legacy/elementary/src/lib/elm_table.c
index 9975fa85dc..e159647b08 100644
--- a/legacy/elementary/src/lib/elm_table.c
+++ b/legacy/elementary/src/lib/elm_table.c
@@ -236,8 +236,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do_super(obj, MY_CLASS, eo_constructor());
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME));
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_thumb.c b/legacy/elementary/src/lib/elm_thumb.c
index c869e12d97..7cf9b07ea4 100644
--- a/legacy/elementary/src/lib/elm_thumb.c
+++ b/legacy/elementary/src/lib/elm_thumb.c
@@ -636,8 +636,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
    Elm_Thumb_Smart_Data *sd = _pd;
    sd->obj = obj;
 
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_toolbar.c b/legacy/elementary/src/lib/elm_toolbar.c
index 3d3d178bc2..36cc59dedc 100644
--- a/legacy/elementary/src/lib/elm_toolbar.c
+++ b/legacy/elementary/src/lib/elm_toolbar.c
@@ -2548,9 +2548,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_smart_callbacks, NULL));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI void
diff --git a/legacy/elementary/src/lib/elm_video.c b/legacy/elementary/src/lib/elm_video.c
index ab6c40bb91..5e1a7b044a 100644
--- a/legacy/elementary/src/lib/elm_video.c
+++ b/legacy/elementary/src/lib/elm_video.c
@@ -308,9 +308,7 @@ _constructor(Eo *obj, void *_pd EINA_UNUSED, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME));
 
-   Evas_Object *parent = eo_parent_get(obj);
-   if (!elm_widget_sub_object_add(parent, obj))
-     ERR("could not add %p as sub object of %p", obj, parent);
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 #else
    eo_error_set(obj);
 #endif
diff --git a/legacy/elementary/src/lib/elm_web.c b/legacy/elementary/src/lib/elm_web.c
index 13652328a9..5f52c4d0a2 100644
--- a/legacy/elementary/src/lib/elm_web.c
+++ b/legacy/elementary/src/lib/elm_web.c
@@ -1223,8 +1223,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_elm_web_smart_callbacks, NULL));
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Evas_Object *
diff --git a/legacy/elementary/src/lib/elm_web2.c b/legacy/elementary/src/lib/elm_web2.c
index 8c207cc837..3f106016ba 100644
--- a/legacy/elementary/src/lib/elm_web2.c
+++ b/legacy/elementary/src/lib/elm_web2.c
@@ -143,8 +143,7 @@ _constructor(Eo *obj, void *_pd, va_list *list EINA_UNUSED)
    eo_do(obj,
          evas_obj_type_set(MY_CLASS_NAME),
          evas_obj_smart_callbacks_descriptions_set(_elm_web_smart_callbacks, NULL));
-   if (!elm_widget_sub_object_add(eo_parent_get(obj), obj))
-     ERR("could not add %p as sub object of %p", obj, eo_parent_get(obj));
+   elm_widget_sub_object_add(eo_parent_get(obj), obj);
 }
 
 EAPI Evas_Object *
diff --git a/legacy/elementary/src/lib/elm_widget.c b/legacy/elementary/src/lib/elm_widget.c
index 7a62a8a20e..13b5ff2499 100644
--- a/legacy/elementary/src/lib/elm_widget.c
+++ b/legacy/elementary/src/lib/elm_widget.c
@@ -934,11 +934,16 @@ elm_widget_sub_object_add(Evas_Object *obj,
    ELM_WIDGET_CHECK(obj) EINA_FALSE;
    EINA_SAFETY_ON_TRUE_RETURN_VAL(obj == sobj, EINA_FALSE);
 
-   if (!sobj) return EINA_FALSE;
+   if (!sobj) goto err;
 
    Eina_Bool ret = EINA_FALSE;
    eo_do(obj, elm_wdg_sub_object_add(sobj, &ret));
-   return ret;
+
+   if (ret) return EINA_TRUE;
+
+err:
+   ERR("could not add %p as sub object of %p", obj, sobj);
+   return EINA_FALSE;
 }
 
 static void
diff --git a/legacy/elementary/src/lib/elm_win.c b/legacy/elementary/src/lib/elm_win.c
index e7fe5d7db5..eeef06e72f 100644
--- a/legacy/elementary/src/lib/elm_win.c
+++ b/legacy/elementary/src/lib/elm_win.c
@@ -3033,8 +3033,7 @@ _resize_object_add(Eo *obj, void *_pd, va_list *list)
 
    Elm_Win_Smart_Data *sd = _pd;
 
-   if (!elm_widget_sub_object_add(obj, subobj))
-     ERR("could not add %p as sub object of %p", subobj, obj);
+   elm_widget_sub_object_add(obj, subobj);
 
    if (!evas_object_box_append(sd->box, subobj))
      ERR("could not append %p to box", subobj);