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[Bluetooth] Signal user-space for HIDP and BNEP socket errors

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When using the HIDP or BNEP kernel support, the user-space needs to
know if the connection has been terminated for some reasons. Wake up
the application if that happens. Otherwise kernel and user-space are
no longer on the same page and weird behaviors can happen.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Marcel Holtmann 2008-07-14 20:13:53 +02:00
parent a0c22f2265
commit ec8dab36e0
2 changed files with 15 additions and 0 deletions
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5
net/bluetooth/bnep/core.c
View file

@ -507,6 +507,11 @@ static int bnep_session(void *arg)
/* Delete network device */
unregister_netdev(dev);
/* Wakeup user-space polling for socket errors */
s->sock->sk->sk_err = EUNATCH;
wake_up_interruptible(s->sock->sk->sk_sleep);
/* Release the socket */
fput(s->sock->file);

10
net/bluetooth/hidp/core.c
View file

@ -581,6 +581,12 @@ static int hidp_session(void *arg)
hid_free_device(session->hid);
}
/* Wakeup user-space polling for socket errors */
session->intr_sock->sk->sk_err = EUNATCH;
session->ctrl_sock->sk->sk_err = EUNATCH;
hidp_schedule(session);
fput(session->intr_sock->file);
wait_event_timeout(*(ctrl_sk->sk_sleep),
@ -879,6 +885,10 @@ int hidp_del_connection(struct hidp_conndel_req *req)
skb_queue_purge(&session->ctrl_transmit);
skb_queue_purge(&session->intr_transmit);
/* Wakeup user-space polling for socket errors */
session->intr_sock->sk->sk_err = EUNATCH;
session->ctrl_sock->sk->sk_err = EUNATCH;
/* Kill session thread */
atomic_inc(&session->terminate);
hidp_schedule(session);