From 74bf895939e1169eb613a42b7f3cb370e7639965 Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Fri, 5 Jul 2013 19:15:19 +0200
Subject: [PATCH] isl_schedule.c: construct_forest: with_merged_divs: accept
 NULL pointer on zero-size allocation

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---
 isl_schedule.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/isl_schedule.c b/isl_schedule.c
index 25f194ad..7403692b 100644
--- a/isl_schedule.c
+++ b/isl_schedule.c
@@ -3487,7 +3487,7 @@ static __isl_give isl_band_list *construct_forest(
 	int *active;
 
 	active = isl_alloc_array(ctx, int, schedule->n);
-	if (!active)
+	if (schedule->n && !active)
 		return NULL;
 
 	for (i = 0; i < schedule->n; ++i)
-- 
2.11.4.GIT