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authorOlaf Kirch <olaf.kirch@oracle.com>2007-04-20 22:08:15 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:29:28 -0700
commit6e66aa15d8873ae7418d5afc6476daec466ff93b (patch)
tree050b3e9d1533d34fc151ffead0119d13b75fdcb0 /net/irda
parent305f2aa18214555e611ad05e586dd385e64ab665 (diff)
downloadlinux-6e66aa15d8873ae7418d5afc6476daec466ff93b.tar.gz
[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>
Diffstat (limited to 'net/irda')
-rw-r--r--net/irda/af_irda.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index a0dbe07a1b1..e9aa1626ea8 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);