From 4b86c459c7bee3acaf92f0e2b4c6ac803eaa1a58 Mon Sep 17 00:00:00 2001 From: Jarno Rajahalme Date: Thu, 23 Feb 2017 17:08:54 -0800 Subject: [PATCH] netfilter: nf_ct_expect: Change __nf_ct_expect_check() return value. Commit 4dee62b1b9b4 ("netfilter: nf_ct_expect: nf_ct_expect_insert() returns void") inadvertently changed the successful return value of nf_ct_expect_related_report() from 0 to 1 due to __nf_ct_expect_check() returning 1 on success. Prevent this regression in the future by changing the return value of __nf_ct_expect_check() to 0 on success. Signed-off-by: Jarno Rajahalme Acked-by: Joe Stringer Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nf_conntrack_expect.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c index d6ace69d57dc..4b2e1fb28bb4 100644 --- a/net/netfilter/nf_conntrack_expect.c +++ b/net/netfilter/nf_conntrack_expect.c @@ -410,7 +410,7 @@ static inline int __nf_ct_expect_check(struct nf_conntrack_expect *expect) struct net *net = nf_ct_exp_net(expect); struct hlist_node *next; unsigned int h; - int ret = 1; + int ret = 0; if (!master_help) { ret = -ESHUTDOWN; @@ -460,7 +460,7 @@ int nf_ct_expect_related_report(struct nf_conntrack_expect *expect, spin_lock_bh(&nf_conntrack_expect_lock); ret = __nf_ct_expect_check(expect); - if (ret <= 0) + if (ret < 0) goto out; nf_ct_expect_insert(expect); -- 2.20.1