evas_clip: check for object validity before adding fallback damage rect

this path should not be triggered for objects which are being deleted,
which was the case in all of the referenced bug reportst

fix T4904, T7100, T7421

Reviewed-by: Cedric BAIL <cedric.bail@free.fr>
Differential Revision: https://phab.enlightenment.org/D8445

diff --git a/src/lib/evas/canvas/evas_clip.c b/src/lib/evas/canvas/evas_clip.c
index 3678d4a..809c24f 100644 (file)
--- a/src/lib/evas/canvas/evas_clip.c
+++ b/src/lib/evas/canvas/evas_clip.c
@@ -289,7 +289,8 @@ _efl_canvas_object_clipper_unset_common(Evas_Object_Protected_Data *obj, Eina_Bo
              if (((clip->cur) && (clip->cur->visible)) &&
                  (((clip->cur->color.r != 255) || (clip->cur->color.g != 255) ||
                    (clip->cur->color.b != 255) || (clip->cur->color.a != 255)) ||
-                  (clip->mask->is_mask)))
+                  (clip->mask->is_mask)) &&
+                  efl_alive_get(clip->object))
                {
                   if (clip->layer)
                     {