From: Sven Verdoolaege <skimo@kotnet.org>
Date: Fri, 9 Dec 2011 18:51:06 +0000 (+0100)
Subject: isl_map_from_pw_aff: handle NULL input
X-Git-Tag: isl-0.09~14^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c8417bb09e7e817b48d38c68d491dba73b4629a2;p=platform%2Fupstream%2Fisl.git

isl_map_from_pw_aff: handle NULL input

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---

diff --git a/isl_aff.c b/isl_aff.c
index 9a6ce14..c1f5557 100644
--- a/isl_aff.c
+++ b/isl_aff.c
@@ -1411,6 +1411,8 @@ static __isl_give isl_map *map_from_pw_aff(__isl_take isl_pw_aff *pwaff)
  */
 __isl_give isl_map *isl_map_from_pw_aff(__isl_take isl_pw_aff *pwaff)
 {
+	if (!pwaff)
+		return NULL;
 	if (isl_space_is_set(pwaff->dim))
 		isl_die(isl_pw_aff_get_ctx(pwaff), isl_error_invalid,
 			"space of input is not a map",