From: Sven Verdoolaege <skimo@kotnet.org>
Date: Sat, 26 Jun 2010 09:45:44 +0000 (+0200)
Subject: isl_equalities.c: parameter_compression_multi: avoid NULL pointer dereference
X-Git-Tag: isl-0.03~24
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2f8d92593afe1c6c61b3b5b920e0accbbe7888ca;p=platform%2Fupstream%2Fisl.git

isl_equalities.c: parameter_compression_multi: avoid NULL pointer dereference
---

diff --git a/isl_equalities.c b/isl_equalities.c
index 0e1faa5..60c5e94 100644
--- a/isl_equalities.c
+++ b/isl_equalities.c
@@ -186,8 +186,12 @@ static struct isl_mat *parameter_compression_multi(
 	A = isl_mat_left_hermite(A, 0, NULL, NULL);
 	T = isl_mat_sub_alloc(A->ctx, A->row, 0, A->n_row, 0, A->n_row);
 	T = isl_mat_lin_to_aff(T);
+	if (!T)
+		goto error;
 	isl_int_set(T->row[0][0], D);
 	T = isl_mat_right_inverse(T);
+	if (!T)
+		goto error;
 	isl_assert(T->ctx, isl_int_is_one(T->row[0][0]), goto error);
 	T = isl_mat_transpose(T);
 	isl_mat_free(A);