isl_basic_set_opt: avoid invalid access on error path

[platform/upstream/isl.git] / isl_id_private.h

diff --git a/isl_id_private.h b/isl_id_private.h
index a472d77..c583b31 100644 (file)
--- a/isl_id_private.h
+++ b/isl_id_private.h
@@ -1,7 +1,7 @@
 /*
  * Copyright 2008-2009 Katholieke Universiteit Leuven
  *
- * Use of this software is governed by the GNU LGPLv2.1 license
+ * Use of this software is governed by the MIT license
  *
  * Written by Sven Verdoolaege, K.U.Leuven, Departement
  * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
@@ -12,6 +12,11 @@
 
 #include <isl/id.h>
 
+/* Represent a name and/or user pointer.
+ *
+ * If "free_user" is set, then it will be called on "user" when
+ * the last instance of the isl_id is freed.
+ */
 struct isl_id {
        int ref;
        isl_ctx *ctx;
@@ -19,6 +24,8 @@ struct isl_id {
        const char *name;
        void *user;
        uint32_t hash;
+
+       __isl_give void (*free_user)(void *user);
 };
 
 uint32_t isl_hash_id(uint32_t hash, __isl_keep isl_id *id);