From e123d63d3f0322683a22e099450e9685a497c625 Mon Sep 17 00:00:00 2001
From: sam <sam@FreeBSD.org>
Date: Wed, 16 Mar 2005 05:27:19 +0000
Subject: [PATCH] plug resource leak

Noticed by:	Coverity Prevent analysis tool
---
 sys/netinet/ip_input.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c
index bee0b86eed5c..64e4046ec889 100644
--- a/sys/netinet/ip_input.c
+++ b/sys/netinet/ip_input.c
@@ -1574,8 +1574,10 @@ save_rte(m, option, dst)
 	if (ipprintfs)
 		printf("save_rte: olen %d\n", olen);
 #endif
-	if (olen > sizeof(opts->ip_srcrt) - (1 + sizeof(dst)))
+	if (olen > sizeof(opts->ip_srcrt) - (1 + sizeof(dst))) {
+		m_tag_free((struct m_tag *)opts);
 		return;
+	}
 	bcopy(option, opts->ip_srcrt.srcopt, olen);
 	opts->ip_nhops = (olen - IPOPT_OFFSET - 1) / sizeof(struct in_addr);
 	opts->ip_srcrt.dst = dst;