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path: root/net/nfc/llcp_sock.c
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Diffstat (limited to 'net/nfc/llcp_sock.c')
-rw-r--r--net/nfc/llcp_sock.c19
1 files changed, 14 insertions, 5 deletions
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 380253eccb74..d308402b67d8 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -571,7 +571,7 @@ static unsigned int llcp_sock_poll(struct file *file, struct socket *sock,
if (sk->sk_shutdown == SHUTDOWN_MASK)
mask |= POLLHUP;
- if (sock_writeable(sk))
+ if (sock_writeable(sk) && sk->sk_state == LLCP_CONNECTED)
mask |= POLLOUT | POLLWRNORM | POLLWRBAND;
else
set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
@@ -603,7 +603,7 @@ static int llcp_sock_release(struct socket *sock)
/* Send a DISC */
if (sk->sk_state == LLCP_CONNECTED)
- nfc_llcp_disconnect(llcp_sock);
+ nfc_llcp_send_disconnect(llcp_sock);
if (sk->sk_state == LLCP_LISTEN) {
struct nfc_llcp_sock *lsk, *n;
@@ -614,7 +614,7 @@ static int llcp_sock_release(struct socket *sock)
accept_sk = &lsk->sk;
lock_sock(accept_sk);
- nfc_llcp_disconnect(lsk);
+ nfc_llcp_send_disconnect(lsk);
nfc_llcp_accept_unlink(accept_sk);
release_sock(accept_sk);
@@ -626,6 +626,13 @@ static int llcp_sock_release(struct socket *sock)
release_sock(sk);
+ /* Keep this sock alive and therefore do not remove it from the sockets
+ * list until the DISC PDU has been actually sent. Otherwise we would
+ * reply with DM PDUs before sending the DISC one.
+ */
+ if (sk->sk_state == LLCP_DISCONNECTING)
+ return err;
+
if (sock->type == SOCK_RAW)
nfc_llcp_sock_unlink(&local->raw_sockets, sk);
else
@@ -722,14 +729,16 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
if (ret)
goto sock_unlink;
+ sk->sk_state = LLCP_CONNECTING;
+
ret = sock_wait_state(sk, LLCP_CONNECTED,
sock_sndtimeo(sk, flags & O_NONBLOCK));
- if (ret)
+ if (ret && ret != -EINPROGRESS)
goto sock_unlink;
release_sock(sk);
- return 0;
+ return ret;
sock_unlink:
nfc_llcp_put_ssap(local, llcp_sock->ssap);