From: John Darrington <john@darrington.wattle.id.au>
Date: Wed, 5 Oct 2011 06:10:55 +0000 (+0200)
Subject: Fix crash on parseing invalid GLM syntax
X-Git-Tag: v0.7.9~131
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56f06878e2a9a111f8415ce4ad839b3fe68b85ec;p=pspp-builds.git

Fix crash on parseing invalid GLM syntax
---

diff --git a/src/math/interaction.c b/src/math/interaction.c
index d81eba50..746cc17f 100644
--- a/src/math/interaction.c
+++ b/src/math/interaction.c
@@ -60,6 +60,9 @@ interaction_create (const struct variable *v)
 void
 interaction_destroy (struct interaction *i)
 {
+  if (NULL == i)
+    return;
+
   free (i->vars);
   free (i);
 }