From 19c9bc5871b5374dba2e0decc0fad4875a0644ab Mon Sep 17 00:00:00 2001
From: Emden Gansner <erg@research.att.com>
Date: Mon, 23 Apr 2012 10:17:14 -0400
Subject: [PATCH] Fix freeing of bad memory pointer.

---
 lib/dotgen/sameport.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/dotgen/sameport.c b/lib/dotgen/sameport.c
index f3dc765a4..7722d6cd0 100644
--- a/lib/dotgen/sameport.c
+++ b/lib/dotgen/sameport.c
@@ -89,6 +89,7 @@ static void sameedge(same_t * same, node_t * n, edge_t * e, char *id)
 	    goto set_arrow;
 	}
     if (++n_same > MAXSAME) {
+	n_same--;
 	agerr(AGERR, "too many same{head,tail} groups for node %s\n",
 	      agnameof(n));
 	return;
-- 
2.50.1