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| author | Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2015-05-07 11:02:47 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-09 22:15:30 -0400 |
| commit | 109582af18b9aade9385ea6609a792f80a7d70ca (patch) | |
| tree | 41d02b858aef5ce2735ef71324290a6b3e115ec5 | |
| parent | 43996fdd9b5409dea7bdc73d8fe4e22ca25ccc39 (diff) | |
| download | linux-109582af18b9aade9385ea6609a792f80a7d70ca.tar.gz linux-109582af18b9aade9385ea6609a792f80a7d70ca.tar.bz2 linux-109582af18b9aade9385ea6609a792f80a7d70ca.zip | |
netns: returns always an id in __peernet2id()
All callers of this function expect a nsid, not an error.
Thus, returns NETNSA_NSID_NOT_ASSIGNED in case of error so that callers
don't have to convert the error to NETNSA_NSID_NOT_ASSIGNED.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/net_namespace.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 78fc04ad36fc..294d38742e2a 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -192,10 +192,12 @@ static int __peernet2id(struct net *net, struct net *peer, bool alloc) if (id > 0) return id; - if (alloc) - return alloc_netid(net, peer, -1); + if (alloc) { + id = alloc_netid(net, peer, -1); + return id >= 0 ? id : NETNSA_NSID_NOT_ASSIGNED; + } - return -ENOENT; + return NETNSA_NSID_NOT_ASSIGNED; } /* This function returns the id of a peer netns. If no id is assigned, one will @@ -204,10 +206,8 @@ static int __peernet2id(struct net *net, struct net *peer, bool alloc) int peernet2id(struct net *net, struct net *peer) { bool alloc = atomic_read(&peer->count) == 0 ? false : true; - int id; - id = __peernet2id(net, peer, alloc); - return id >= 0 ? id : NETNSA_NSID_NOT_ASSIGNED; + return __peernet2id(net, peer, alloc); } EXPORT_SYMBOL(peernet2id); @@ -554,13 +554,10 @@ static int rtnl_net_fill(struct sk_buff *skb, u32 portid, u32 seq, int flags, rth = nlmsg_data(nlh); rth->rtgen_family = AF_UNSPEC; - if (nsid >= 0) { + if (nsid >= 0) id = nsid; - } else { + else id = __peernet2id(net, peer, false); - if (id < 0) - id = NETNSA_NSID_NOT_ASSIGNED; - } if (nla_put_s32(skb, NETNSA_NSID, id)) goto nla_put_failure; |