From: Sven Verdoolaege <skimo@kotnet.org>
Date: Fri, 25 Jun 2010 18:36:16 +0000 (+0200)
Subject: isl_{set,map}_fast_is_empty: avoid NULL pointer dereference
X-Git-Tag: isl-0.03~51
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c5a5b3912324a8f68af977baafb407c4d8fe95d1;p=platform%2Fupstream%2Fisl.git

isl_{set,map}_fast_is_empty: avoid NULL pointer dereference
---

diff --git a/isl_map.c b/isl_map.c
index 7ac2900..dd438b6 100644
--- a/isl_map.c
+++ b/isl_map.c
@@ -5197,12 +5197,12 @@ int isl_map_is_empty(struct isl_map *map)
 
 int isl_map_fast_is_empty(struct isl_map *map)
 {
-	return map->n == 0;
+	return map ? map->n == 0 : -1;
 }
 
 int isl_set_fast_is_empty(struct isl_set *set)
 {
-	return set->n == 0;
+	return set ? set->n == 0 : -1;
 }
 
 int isl_set_is_empty(struct isl_set *set)