From: Dan McGee <dan@archlinux.org>
Date: Wed, 31 Aug 2011 19:18:49 +0000 (-0700)
Subject: xt: only unset fields if m is non NULL
X-Git-Tag: v3.0.0~19
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f3626f9206b8a23637a3c36ec28db1e895850d4;p=thirdparty%2Fiproute2.git

xt: only unset fields if m is non NULL
---

diff --git a/tc/m_xt.c b/tc/m_xt.c
index 86e223bcc..18666b3eb 100644
--- a/tc/m_xt.c
+++ b/tc/m_xt.c
@@ -252,13 +252,15 @@ static int parse_ipt(struct action_util *a,int *argc_p,
 
 	optind = 0;
 	xtables_free_opts(1);
-	/* Clear flags if target will be used again */
-        m->tflags=0;
-        m->used=0;
-	/* Free allocated memory */
-        if (m->t)
-            free(m->t);
 
+	if (m) {
+		/* Clear flags if target will be used again */
+		m->tflags = 0;
+		m->used = 0;
+		/* Free allocated memory */
+		if (m->t)
+			free(m->t);
+	}
 
 	return 0;