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authorOlaf Kirch <olaf.kirch@oracle.com>2007-04-18 15:14:14 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-05-01 17:05:59 -0700
commit1ee88fb696591eedd34ee9bbcc0c001609ec7901 (patch)
tree901eeccb4c5000cb4995d8394c93fd22e7399087
parent100f4756d42036cca5968ef82542ecf6bccbc8a1 (diff)
Fix IRDA oops'er
This fixes and OOPS due to incorrect socket orpahning in the IRDA stack. [IrDA]: Correctly handling socket error This patch fixes an oops first reported in mid 2006 - see http://lkml.org/lkml/2006/8/29/358 The cause of this bug report is that when an error is signalled on the socket, irda_recvmsg_stream returns without removing a local wait_queue variable from the socket's sk_sleep queue. This causes havoc further down the road. In response to this problem, a patch was made that invoked sock_orphan on the socket when receiving a disconnect indication. This is not a good fix, as this sets sk_sleep to NULL, causing applications sleeping in recvmsg (and other places) to oops. This is against the latest net-2.6 and should be considered for -stable inclusion. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--net/irda/af_irda.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 7e1aea89ef05..b296c1b9ec5e 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -138,7 +138,6 @@ static void irda_disconnect_indication(void *instance, void *sap,
sk->sk_shutdown |= SEND_SHUTDOWN;
sk->sk_state_change(sk);
- sock_orphan(sk);
release_sock(sk);
/* Close our TSAP.
@@ -1446,7 +1445,7 @@ static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock,
*/
ret = sock_error(sk);
if (ret)
- break;
+ ;
else if (sk->sk_shutdown & RCV_SHUTDOWN)
;
else if (noblock)