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Diffstat (limited to 'net/nfc/llcp/sock.c')
-rw-r--r--net/nfc/llcp/sock.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index b08e99d2c715..211cb234f7a3 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -124,6 +124,8 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
if (llcp_sock->ssap == LLCP_MAX_SAP)
goto put_dev;
+ llcp_sock->reserved_ssap = llcp_sock->ssap;
+
nfc_llcp_sock_link(&local->sockets, sk);
pr_debug("Socket bound to SAP %d\n", llcp_sock->ssap);
@@ -409,7 +411,8 @@ static int llcp_sock_release(struct socket *sock)
}
}
- nfc_llcp_put_ssap(llcp_sock->local, llcp_sock->ssap);
+ if (llcp_sock->reserved_ssap < LLCP_SAP_MAX)
+ nfc_llcp_put_ssap(llcp_sock->local, llcp_sock->ssap);
release_sock(sk);
@@ -489,6 +492,9 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
ret = -ENOMEM;
goto put_dev;
}
+
+ llcp_sock->reserved_ssap = llcp_sock->ssap;
+
if (addr->service_name_len == 0)
llcp_sock->dsap = addr->dsap;
else
@@ -690,6 +696,7 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp)
llcp_sock->send_n = llcp_sock->send_ack_n = 0;
llcp_sock->recv_n = llcp_sock->recv_ack_n = 0;
llcp_sock->remote_ready = 1;
+ llcp_sock->reserved_ssap = LLCP_SAP_MAX;
skb_queue_head_init(&llcp_sock->tx_queue);
skb_queue_head_init(&llcp_sock->tx_pending_queue);
skb_queue_head_init(&llcp_sock->tx_backlog_queue);