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Message-ID: <20150116062348.GA8588@gondor.apana.org.au>
Date: Fri, 16 Jan 2015 17:23:48 +1100
From: Herbert Xu <herbert@...dor.apana.org.au>
To: netdev@...r.kernel.org, Ying Xue <ying.xue@...driver.com>
Subject: netlink: Fix netlink_insert EADDRINUSE error
The patch c5adde9468b0714a051eac7f9666f23eb10b61f7 ("netlink:
eliminate nl_sk_hash_lock") introduced a bug where the EADDRINUSE
error has been replaced by ENOMEM. This patch rectifies that
problem.
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 01b702d..7a94185 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1050,7 +1050,7 @@ netlink_update_listeners(struct sock *sk)
static int netlink_insert(struct sock *sk, struct net *net, u32 portid)
{
struct netlink_table *table = &nl_table[sk->sk_protocol];
- int err = -EADDRINUSE;
+ int err;
lock_sock(sk);
@@ -1065,10 +1065,13 @@ static int netlink_insert(struct sock *sk, struct net *net, u32 portid)
nlk_sk(sk)->portid = portid;
sock_hold(sk);
- if (__netlink_insert(table, sk, net))
- err = 0;
- else
+
+ err = 0;
+ if (!__netlink_insert(table, sk, net)) {
+ err = -EADDRINUSE;
sock_put(sk);
+ }
+
err:
release_sock(sk);
return err;
--
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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