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authorJarno Rajahalme <jarno@ovn.org>2017-02-23 17:08:54 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-21 17:21:34 +0200
commitf107c6ddf8db81bda0f784c57c9d26ca87cc3c38 (patch)
tree9e596444b3426d2f9499936e28b794a0541b50a7 /net
parent0500fcd885561a41d49ef635453247df41a80df5 (diff)
netfilter: nf_ct_expect: Change __nf_ct_expect_check() return value.
[ Upstream commit 4b86c459c7bee3acaf92f0e2b4c6ac803eaa1a58 ] 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 <jarno@ovn.org> Acked-by: Joe Stringer <joe@ovn.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/nf_conntrack_expect.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/netfilter/nf_conntrack_expect.c b/net/netfilter/nf_conntrack_expect.c
index f8dbacf66795..0d6c72d6b9ba 100644
--- a/net/netfilter/nf_conntrack_expect.c
+++ b/net/netfilter/nf_conntrack_expect.c
@@ -411,7 +411,7 @@ 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;
@@ -461,7 +461,7 @@ 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;
ret = nf_ct_expect_insert(expect);