xt: only unset fields if m is non NULL

2011-08-31 12:18:49 -07:00 · 2011-08-31 12:18:49 -07:00 · 4f3626f920
parent 9a230771c0
commit 4f3626f920
1 changed files with 8 additions and 6 deletions
--- 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);
+
+	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;