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| author | Olaf Kirch <olaf.kirch@oracle.com> | 2007-04-20 22:08:15 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:29:28 -0700 |
| commit | 6e66aa15d8873ae7418d5afc6476daec466ff93b (patch) | |
| tree | 050b3e9d1533d34fc151ffead0119d13b75fdcb0 | |
| parent | 305f2aa18214555e611ad05e586dd385e64ab665 (diff) | |
| download | linux-6e66aa15d8873ae7418d5afc6476daec466ff93b.tar.gz linux-6e66aa15d8873ae7418d5afc6476daec466ff93b.tar.bz2 linux-6e66aa15d8873ae7418d5afc6476daec466ff93b.zip | |
[IrDA] af_irda: Silence kernel message in irda_recvmsg_stream
This patch silences an IRDA_ASSERT in irda_recvmsg_stream, as described in
http://bugzilla.kernel.org/show_bug.cgi?id=7512 irda_disconnect_indication
would set sk->sk_err to ECONNRESET, and a subsequent call to recvmsg
would print an irritating kernel message and return -1.
When a connected socket is closed by the peer, recvmsg should return 0
rather than an error. This patch fixes this.
Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/irda/af_irda.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c index a0dbe07a1b19..e9aa1626ea89 100644 --- a/net/irda/af_irda.c +++ b/net/irda/af_irda.c @@ -131,14 +131,12 @@ static void irda_disconnect_indication(void *instance, void *sap, } /* Prevent race conditions with irda_release() and irda_shutdown() */ + bh_lock_sock(sk); if (!sock_flag(sk, SOCK_DEAD) && sk->sk_state != TCP_CLOSE) { - lock_sock(sk); sk->sk_state = TCP_CLOSE; - sk->sk_err = ECONNRESET; sk->sk_shutdown |= SEND_SHUTDOWN; sk->sk_state_change(sk); - release_sock(sk); /* Close our TSAP. * If we leave it open, IrLMP put it back into the list of @@ -158,6 +156,7 @@ static void irda_disconnect_indication(void *instance, void *sap, self->tsap = NULL; } } + bh_unlock_sock(sk); /* Note : once we are there, there is not much you want to do * with the socket anymore, apart from closing it. @@ -1061,7 +1060,8 @@ static int irda_connect(struct socket *sock, struct sockaddr *uaddr, if (sk->sk_state != TCP_ESTABLISHED) { sock->state = SS_UNCONNECTED; - return sock_error(sk); /* Always set at this point */ + err = sock_error(sk); + return err? err : -ECONNRESET; } sock->state = SS_CONNECTED; @@ -1355,7 +1355,9 @@ static int irda_recvmsg_dgram(struct kiocb *iocb, struct socket *sock, IRDA_DEBUG(4, "%s()\n", __FUNCTION__); IRDA_ASSERT(self != NULL, return -1;); - IRDA_ASSERT(!sock_error(sk), return -1;); + + if ((err = sock_error(sk)) < 0) + return err; skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT, flags & MSG_DONTWAIT, &err); @@ -1402,13 +1404,15 @@ static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock, struct irda_sock *self = irda_sk(sk); int noblock = flags & MSG_DONTWAIT; size_t copied = 0; - int target; + int target, err; long timeo; IRDA_DEBUG(3, "%s()\n", __FUNCTION__); IRDA_ASSERT(self != NULL, return -1;); - IRDA_ASSERT(!sock_error(sk), return -1;); + + if ((err = sock_error(sk)) < 0) + return err; if (sock->flags & __SO_ACCEPTCON) return(-EINVAL); |