diff --git a/legacy/ethumb/src/bin/ethumb.c b/legacy/ethumb/src/bin/ethumb.c
index e23c82967b..784068e61d 100644
--- a/legacy/ethumb/src/bin/ethumb.c
+++ b/legacy/ethumb/src/bin/ethumb.c
@@ -129,7 +129,7 @@ const Ecore_Getopt optdesc = {
 };
 
 static void
-_finished_thumb(Ethumb *e, void *data)
+_finished_thumb(Ethumb *e, int result, void *data)
 {
    ecore_main_loop_quit();
 }
diff --git a/legacy/ethumb/src/lib/Ethumb.c b/legacy/ethumb/src/lib/Ethumb.c
index 2e01d2cdaf..f06c623e46 100644
--- a/legacy/ethumb/src/lib/Ethumb.c
+++ b/legacy/ethumb/src/lib/Ethumb.c
@@ -794,7 +794,6 @@ _ethumb_plugin_generate(Ethumb *e)
 {
    const char *ext;
    Ethumb_Plugin *plugin;
-   int r;
 
    ext = strrchr(e->src_path, '.');
    if (!ext)
@@ -815,9 +814,9 @@ _ethumb_plugin_generate(Ethumb *e)
    else
      evas_object_hide(e->img);
 
-   r = plugin->generate_thumb(e);
+   plugin->generate_thumb(e);
 
-   return r;
+   return 1;
 }
 
 int
@@ -955,7 +954,7 @@ _ethumb_finished_idler_cb(void *data)
 {
    Ethumb *e = data;
 
-   e->finished_cb(e, e->cb_data);
+   e->finished_cb(e, e->cb_result, e->cb_data);
    e->finished_idler = NULL;
    e->finished_cb = NULL;
    e->cb_data = NULL;
@@ -964,10 +963,11 @@ _ethumb_finished_idler_cb(void *data)
 }
 
 void
-ethumb_finished_callback_call(Ethumb *e)
+ethumb_finished_callback_call(Ethumb *e, int result)
 {
    EINA_SAFETY_ON_NULL_RETURN(e);
 
+   e->cb_result = result;
    if (e->finished_idler)
      ecore_idler_del(e->finished_idler);
    e->finished_idler = ecore_idler_add(_ethumb_finished_idler_cb, e);
@@ -992,19 +992,20 @@ ethumb_generate(Ethumb *e, ethumb_generate_callback_t finished_cb, void *data)
 
    r = _ethumb_plugin_generate(e);
    if (r)
-     return r;
+     return 1;
 
    if (!_ethumb_image_load(e))
      {
 	ERR("could not load input image.\n");
-	return 0;
+	ethumb_finished_callback_call(e, 0);
+	return 1;
      }
 
    r = ethumb_image_save(e);
-   if (r && finished_cb)
-     ethumb_finished_callback_call(e);
 
-   return r;
+   ethumb_finished_callback_call(e, r);
+
+   return 1;
 }
 
 EAPI int
diff --git a/legacy/ethumb/src/lib/Ethumb.h b/legacy/ethumb/src/lib/Ethumb.h
index 50da7aab2b..adb79e3d9b 100644
--- a/legacy/ethumb/src/lib/Ethumb.h
+++ b/legacy/ethumb/src/lib/Ethumb.h
@@ -66,7 +66,7 @@ typedef enum _Ethumb_Thumb_Aspect Ethumb_Thumb_Aspect;
 
 typedef struct _Ethumb_Frame Ethumb_Frame;
 typedef struct _Ethumb Ethumb;
-typedef void (*ethumb_generate_callback_t)(Ethumb *e, void *data);
+typedef void (*ethumb_generate_callback_t)(Ethumb *e, int result, void *data);
 
 EAPI int ethumb_init(void);
 EAPI int ethumb_shutdown(void);
diff --git a/legacy/ethumb/src/lib/Ethumb_Plugin.h b/legacy/ethumb/src/lib/Ethumb_Plugin.h
index dff8d3a93a..e6db2f028c 100644
--- a/legacy/ethumb/src/lib/Ethumb_Plugin.h
+++ b/legacy/ethumb/src/lib/Ethumb_Plugin.h
@@ -10,14 +10,14 @@ typedef struct _Ethumb_Plugin Ethumb_Plugin;
 struct _Ethumb_Plugin
 {
    const char **extensions;
-   int (*generate_thumb)(Ethumb *);
+   void (*generate_thumb)(Ethumb *);
 };
 
 void ethumb_calculate_aspect(Ethumb *e, int iw, int ih, int *w, int *h);
 void ethumb_calculate_fill(Ethumb *e, int iw, int ih, int *fx, int *fy, int *fw, int *fh);
 int ethumb_plugin_image_resize(Ethumb *e, int w, int h);
 int ethumb_image_save(Ethumb *e);
-void ethumb_finished_callback_call(Ethumb *e);
+void ethumb_finished_callback_call(Ethumb *e, int result);
 Evas * ethumb_evas_get(const Ethumb *e);
 
 #endif /* _ETHUMB_PLUGIN_H_ */
diff --git a/legacy/ethumb/src/lib/ethumb_private.h b/legacy/ethumb/src/lib/ethumb_private.h
index 1da7f0d4f3..b43131f2bf 100644
--- a/legacy/ethumb/src/lib/ethumb_private.h
+++ b/legacy/ethumb/src/lib/ethumb_private.h
@@ -39,6 +39,7 @@ struct _Ethumb
    Ecore_Idler *finished_idler;
    ethumb_generate_callback_t finished_cb;
    void *cb_data;
+   int cb_result;
 };
 
 #endif /* __ETHUMB_PRIVATE_H__ */
diff --git a/legacy/ethumb/src/plugins/emotion/emotion.c b/legacy/ethumb/src/plugins/emotion/emotion.c
index 2ca1066da1..b82db3319d 100644
--- a/legacy/ethumb/src/plugins/emotion/emotion.c
+++ b/legacy/ethumb/src/plugins/emotion/emotion.c
@@ -29,10 +29,10 @@ _frame_resized_cb(void *data, Evas_Object *o, void *event_info)
    evas_object_smart_callback_del(o, "frame_resize", _frame_resized_cb);
    emotion_object_play_set(o, 0);
    evas_object_del(o);
-   ethumb_finished_callback_call(e);
+   ethumb_finished_callback_call(e, 1);
 }
 
-static int
+static void
 _generate_thumb(Ethumb *e)
 {
    Evas_Object *o;
@@ -47,7 +47,8 @@ _generate_thumb(Ethumb *e)
 	fprintf(stderr, "ERROR: could not start emotion using gstreamer"
 		" plugin.\n");
 	evas_object_del(o);
-	return r;
+	ethumb_finished_callback_call(e, 0);
+	return;
      }
 
    ethumb_file_get(e, &file, NULL);
@@ -63,7 +64,6 @@ _generate_thumb(Ethumb *e)
 
    _emotion = o;
 
-   return 1;
 }
 
 EAPI Ethumb_Plugin *
diff --git a/legacy/ethumb/src/plugins/epdf/epdf.c b/legacy/ethumb/src/plugins/epdf/epdf.c
index 43111ebbf2..9cc47a1fab 100644
--- a/legacy/ethumb/src/plugins/epdf/epdf.c
+++ b/legacy/ethumb/src/plugins/epdf/epdf.c
@@ -8,7 +8,7 @@
 #include <Evas.h>
 #include <Epdf.h>
 
-static int
+static void
 _generate_thumb(Ethumb *e)
 {
    Epdf_Document *document;
@@ -23,7 +23,8 @@ _generate_thumb(Ethumb *e)
    if (!document)
      {
 	fprintf(stderr, "ERROR: could not read document: %s\n", e->src_path);
-	return 0;
+	ethumb_finished_callback_call(e, 0);
+	return;
      }
 
    page = epdf_page_new(document);
@@ -31,7 +32,8 @@ _generate_thumb(Ethumb *e)
      {
 	fprintf(stderr, "ERROR: could not read document: %s\n", e->src_path);
 	epdf_document_delete(document);
-	return 0;
+	ethumb_finished_callback_call(e, 0);
+	return;
      }
 
    npages = epdf_document_page_count_get(document);
@@ -57,9 +59,7 @@ _generate_thumb(Ethumb *e)
    epdf_page_delete(page);
    epdf_document_delete(document);
 
-   ethumb_finished_callback_call(e);
-
-   return 1;
+   ethumb_finished_callback_call(e, 1);
 }
 
 Ethumb_Plugin *