diff options
| author | Samuel Ortiz <sameo@linux.intel.com> | 2012-06-22 14:48:11 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-07-09 16:42:17 -0400 |
| commit | cbbf472181bd5d6229decda96b34b0c2bbcb3050 (patch) | |
| tree | 152e06ea436fcc419af1604a2f118f6be0ff33c9 /net/nfc/llcp/sock.c | |
| parent | 4d22ea1532ba5730b665343e513d813c108c84ff (diff) | |
NFC: Release LLCP SAP when the owner is released
The LLCP SAP should only be freed when the socket owning it is released.
As long as the socket is alive, the SAP should be reserved in order to
e.g. send the right wks array when bringing the MAC up.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc/llcp/sock.c')
| -rw-r--r-- | net/nfc/llcp/sock.c | 9 |
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); |