Evas/cserve2: Add another load error check

This one is very unlikely as it would mean the image is
invalid while being in the hash.

src/lib/evas/cache2/evas_cache2.c

@@ -861,10 +861,10 @@ _scaled_image_find(Image_Entry *im, int src_x, int src_y, int src_w,
    _evas_cache2_image_activ_add(ret);
 
  found:
+   if (evas_cache2_image_load_data(ret) != EVAS_LOAD_ERROR_NONE)
+     return NULL;
    ret->references++;
 
-   evas_cache2_image_load_data(ret);
-
    return ret;
 }