netdev - [PATCH 3/4] [IPV6] TCPMD5: Check return value of tcp_alloc_md5sig

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Date:	Wed, 21 Nov 2007 01:53:20 +0900 (JST)
From:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
To:	davem@...emloft.net, herbert@...dor.apana.org.au
Cc:	yoshfuji@...ux-ipv6.org, netdev@...r.kernel.org
Subject: [PATCH 3/4] [IPV6] TCPMD5: Check return value of
 tcp_alloc_md5sig_pool().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
---
 net/ipv6/tcp_ipv6.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 3aad861..b1bfbdd 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -581,7 +581,10 @@ static int tcp_v6_md5_do_add(struct sock *sk, struct in6_addr *peer,
 			}
 			sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
 		}
-		tcp_alloc_md5sig_pool();
+		if (tcp_alloc_md5sig_pool() == NULL) {
+			kfree(newkey);
+			return -ENOMEM;
+		}
 		if (tp->md5sig_info->alloced6 == tp->md5sig_info->entries6) {
 			keys = kmalloc((sizeof (tp->md5sig_info->keys6[0]) *
 				       (tp->md5sig_info->entries6 + 1)), GFP_ATOMIC);
-- 
1.4.4.4

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