evas: add null check

Summary:
this commit add null check.
In EVAS_OBJECT_DATA_SAFE_GET, if eo_obj is null, obj can also be null.
and In _efl_canvas_output_async_block() can return null.

Test Plan: N/A

Reviewers: woohyun, kimcinoo, cedric

Subscribers: cedric

Differential Revision: https://phab.enlightenment.org/D5870

Reviewed-by: Cedric BAIL <cedric@osg.samsung.com>

src/lib/evas/canvas/evas_object_main.c

@@ -189,6 +189,7 @@ _animation_intercept_hide(void *data, Evas_Object *eo_obj)
 {
    Event_Animation *event_anim = data;
    Evas_Object_Protected_Data *obj = EVAS_OBJECT_DATA_SAFE_GET(eo_obj);
+   if (!obj) return;
 
    if (event_anim->anim && obj->anim_player &&
       (event_anim->anim != efl_animation_player_animation_get(obj->anim_player)))

src/lib/evas/canvas/evas_out.c

@@ -53,6 +53,7 @@ efl_canvas_output_add(Evas *canvas)
    r->changed = EINA_TRUE;
 
    e = _efl_canvas_output_async_block(r);
+   if (!e) return NULL;
    // Track this output in Evas
    e->outputs = eina_list_append(e->outputs, r);