From: Olaf Kirch <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
Signed-off-by: Samuel Ortiz <[EMAIL PROTECTED]>
---
net/irda/af_irda.c | 18 +++++++++++-------
1 files changed, 11 insertions(+), 7 deletions(-)
Index: net-2.6.22-quilt/net/irda/af_irda.c
===================================================================
--- net-2.6.22-quilt.orig/net/irda/af_irda.c 2007-04-18 02:10:56.000000000
+0300
+++ net-2.6.22-quilt/net/irda/af_irda.c 2007-04-18 02:14:24.000000000 +0300
@@ -131,15 +131,13 @@
}
/* 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);
sock_orphan(sk);
- release_sock(sk);
/* Close our TSAP.
* If we leave it open, IrLMP put it back into the list of
@@ -159,6 +157,7 @@
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.
@@ -1062,7 +1061,8 @@
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;
@@ -1356,7 +1356,9 @@
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);
@@ -1403,13 +1405,15 @@
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);
--
-
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