[gnome-photos] utils: Check the RDF type before using it, not the MIME type

[Debarshi Ray <debarshir src gnome org>]

commit 5bbd5a784edb153c651e8a12ea8d8dbc381adaab
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Jan 24 20:29:18 2018 +0100

    utils: Check the RDF type before using it, not the MIME type

 src/photos-utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/photos-utils.c b/src/photos-utils.c
index a0bb452e..cc2f8e78 100644
--- a/src/photos-utils.c
+++ b/src/photos-utils.c
@@ -494,7 +494,7 @@ photos_utils_get_icon_from_cursor (TrackerSparqlCursor *cursor)
     goto out;
 
   rdf_type = tracker_sparql_cursor_get_string (cursor, PHOTOS_QUERY_COLUMNS_RDF_TYPE, NULL);
-  if (mime_type != NULL)
+  if (rdf_type != NULL)
     icon = photos_utils_icon_from_rdf_type (rdf_type);
 
   if (icon != NULL)