Fix subordinate_next() return value.

* lib/subordinateio.c (subordinate_next): Fix return value.

ChangeLog

@@ -1,3 +1,7 @@
+2013-08-19  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* lib/subordinateio.c (subordinate_next): Fix return value.
+
 2013-08-16  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* libmisc/idmapping.c: Include <stdio.h> needed for fprintf() and

lib/subordinateio.c

@@ -122,7 +122,7 @@ static struct commonio_ops subordinate_ops = {
 
 static /*@observer@*/ /*@null*/const struct subordinate_range *subordinate_next(struct commonio_db *db)
 {
-	commonio_next (db);
+	return (const struct subordinate_range *)commonio_next (db);
 }
 
 static const bool range_exists(struct commonio_db *db, const char *owner)