diff options
| -rw-r--r-- | net/nfc/llcp.h | 1 | ||||
| -rw-r--r-- | net/nfc/llcp_core.c | 7 | ||||
| -rw-r--r-- | net/nfc/llcp_sock.c | 7 |
3 files changed, 15 insertions, 0 deletions
diff --git a/net/nfc/llcp.h b/net/nfc/llcp.h index ac16ebe3069d..71f649e5ef49 100644 --- a/net/nfc/llcp.h +++ b/net/nfc/llcp.h @@ -19,6 +19,7 @@ enum llcp_state { LLCP_CONNECTED = 1, /* wait_for_packet() wants that */ + LLCP_DISCONNECTING, LLCP_CLOSED, LLCP_BOUND, LLCP_LISTEN, diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c index 158bdbf668cc..1c4c048e0a1b 100644 --- a/net/nfc/llcp_core.c +++ b/net/nfc/llcp_core.c @@ -730,6 +730,13 @@ static void nfc_llcp_tx_work(struct work_struct *work) DUMP_PREFIX_OFFSET, 16, 1, skb->data, skb->len, true); + if (ptype == LLCP_PDU_DISC && sk != NULL && + sk->sk_state == LLCP_DISCONNECTING) { + nfc_llcp_sock_unlink(&local->sockets, sk); + sock_orphan(sk); + sock_put(sk); + } + if (ptype == LLCP_PDU_I) copy_skb = skb_copy(skb, GFP_ATOMIC); diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index 03fd3162cee5..47e7acfc0236 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -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 |