From 1e2a96b7c0999e4baa71aa7cd9a2e52604e3d03c Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Thu, 18 Sep 2008 20:02:41 +0200
Subject: [PATCH] isl_basic_map_overlying_set: fix possible NULL access

---
 isl_map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/isl_map.c b/isl_map.c
index 10aac0b..2b23e03 100644
--- a/isl_map.c
+++ b/isl_map.c
@@ -2045,9 +2045,9 @@ struct isl_basic_map *isl_basic_map_overlying_set(
 		return (struct isl_basic_map *)bset;
 	}
 	bset = isl_basic_set_cow(bset);
-	total = bset->dim + bset->extra;
 	if (!bset)
 		goto error;
+	total = bset->dim + bset->extra;
 	bmap = (struct isl_basic_map *)bset;
 	bmap->nparam = like->nparam;
 	bmap->n_in = like->n_in;
-- 
2.7.4