[pygobject] Fix some ref leaks in hook_up_vfunc_implementation()

[Steve Frécinaux <sfre src gnome org>]

commit ac59c18a4f2bfff47c862b763aaf1d1cf136a4f5
Author: Steve Frécinaux <code istique net>
Date:   Tue Aug 17 14:49:30 2010 +0200

    Fix some ref leaks in hook_up_vfunc_implementation()
    
    https://bugzilla.gnome.org/show_bug.cgi?id=627143

 gi/gimodule.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/gi/gimodule.c b/gi/gimodule.c
index 56ae7a3..757a494 100644
--- a/gi/gimodule.c
+++ b/gi/gimodule.c
@@ -195,12 +195,17 @@ _wrap_pyg_hook_up_vfunc_implementation (PyObject *self, PyObject *args)
         field_info = g_struct_info_get_field (struct_info, i);
 
         if (strcmp (g_base_info_get_name ( (GIBaseInfo*) field_info),
-                    g_base_info_get_name ( (GIBaseInfo*) vfunc_info)) != 0)
+                    g_base_info_get_name ( (GIBaseInfo*) vfunc_info)) != 0) {
+            g_base_info_unref (field_info);
             continue;
+        }
 
         type_info = g_field_info_get_type (field_info);
-        if (g_type_info_get_tag (type_info) != GI_TYPE_TAG_INTERFACE)
+        if (g_type_info_get_tag (type_info) != GI_TYPE_TAG_INTERFACE) {
+            g_base_info_unref (type_info);
+            g_base_info_unref (field_info);
             continue;
+        }
 
         interface_info = g_type_info_get_interface (type_info);
         g_assert (g_base_info_get_type (interface_info) == GI_INFO_TYPE_CALLBACK);