ges-extractable: Return NULL instead of G_TYPE_INVALID

The return type of this function is gchar *, not GType

diff --git a/ges/ges-extractable.c b/ges/ges-extractable.c
index 17c3146ac1a4c6ab05716100d2212b40597ae9b3..6d4c09d32f84855fc45d13ac11ab574269368580 100644 (file)
--- a/ges/ges-extractable.c
+++ b/ges/ges-extractable.c
@@ -213,10 +213,9 @@ ges_extractable_type_check_id (GType type, const gchar * id, GError ** error)
   GObjectClass *klass;
   GESExtractableInterface *iface;
 
-  g_return_val_if_fail (error == NULL || *error == NULL, G_TYPE_INVALID);
-  g_return_val_if_fail (g_type_is_a (type, G_TYPE_OBJECT), G_TYPE_INVALID);
-  g_return_val_if_fail (g_type_is_a (type, GES_TYPE_EXTRACTABLE),
-      G_TYPE_INVALID);
+  g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+  g_return_val_if_fail (g_type_is_a (type, G_TYPE_OBJECT), NULL);
+  g_return_val_if_fail (g_type_is_a (type, GES_TYPE_EXTRACTABLE), NULL);
 
   klass = g_type_class_ref (type);