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| author | phil.turnbull@oracle.com <phil.turnbull@oracle.com> | 2016-07-26 15:14:35 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-07-26 15:19:46 -0700 |
| commit | 4ac36a4adaf80013a60013d6f829f5863d5d0e05 (patch) | |
| tree | c46aae34abc1e0b5184dd020d168e22facf56015 /net/l2tp | |
| parent | 0a91605cda883f7a25b1e7fa8cdc3f633ae8f8e0 (diff) | |
| download | lwn-4ac36a4adaf80013a60013d6f829f5863d5d0e05.tar.gz lwn-4ac36a4adaf80013a60013d6f829f5863d5d0e05.zip | |
l2tp: Correctly return -EBADF from pppol2tp_getname.
If 'tunnel' is NULL we should return -EBADF but the 'end_put_sess' path
unconditionally sets 'error' back to zero. Rework the error path so it
more closely matches pppol2tp_sendmsg.
Fixes: fd558d186df2 ("l2tp: Split pppol2tp patch into separate l2tp and ppp parts")
Signed-off-by: Phil Turnbull <phil.turnbull@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/l2tp')
| -rw-r--r-- | net/l2tp/l2tp_ppp.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 652c250b9a3b..d9560aa2dba3 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -866,10 +866,8 @@ static int pppol2tp_getname(struct socket *sock, struct sockaddr *uaddr, pls = l2tp_session_priv(session); tunnel = l2tp_sock_to_tunnel(pls->tunnel_sock); - if (tunnel == NULL) { - error = -EBADF; + if (tunnel == NULL) goto end_put_sess; - } inet = inet_sk(tunnel->sock); if ((tunnel->version == 2) && (tunnel->sock->sk_family == AF_INET)) { @@ -947,12 +945,11 @@ static int pppol2tp_getname(struct socket *sock, struct sockaddr *uaddr, } *usockaddr_len = len; + error = 0; sock_put(pls->tunnel_sock); end_put_sess: sock_put(sk); - error = 0; - end: return error; } |