diff options
-rw-r--r-- | net/nfc/llcp/llcp.c | 15 | ||||
-rw-r--r-- | net/nfc/llcp/sock.c | 23 |
2 files changed, 26 insertions, 12 deletions
diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c index 3ce646e35f6..8af896dc759 100644 --- a/net/nfc/llcp/llcp.c +++ b/net/nfc/llcp/llcp.c @@ -47,7 +47,7 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local) /* Release all child sockets */ list_for_each_entry_safe(s, n, &parent->list, list) { - list_del(&s->list); + list_del_init(&s->list); sk = &s->sk; lock_sock(sk); @@ -56,9 +56,12 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local) nfc_put_device(s->dev); sk->sk_state = LLCP_CLOSED; - sock_set_flag(sk, SOCK_DEAD); release_sock(sk); + + sock_orphan(sk); + + s->local = NULL; } parent_sk = &parent->sk; @@ -77,11 +80,12 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local) nfc_llcp_accept_unlink(accept_sk); accept_sk->sk_state = LLCP_CLOSED; - sock_set_flag(accept_sk, SOCK_DEAD); release_sock(accept_sk); sock_orphan(accept_sk); + + lsk->local = NULL; } } @@ -89,9 +93,12 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local) nfc_put_device(parent->dev); parent_sk->sk_state = LLCP_CLOSED; - sock_set_flag(parent_sk, SOCK_DEAD); release_sock(parent_sk); + + sock_orphan(parent_sk); + + parent->local = NULL; } mutex_unlock(&local->socket_lock); diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c index d3861773fab..35825e20163 100644 --- a/net/nfc/llcp/sock.c +++ b/net/nfc/llcp/sock.c @@ -315,6 +315,7 @@ static int llcp_sock_release(struct socket *sock) struct sock *sk = sock->sk; struct nfc_llcp_local *local; struct nfc_llcp_sock *llcp_sock = nfc_llcp_sock(sk); + int err = 0; if (!sk) return 0; @@ -322,15 +323,17 @@ static int llcp_sock_release(struct socket *sock) pr_debug("%p\n", sk); local = llcp_sock->local; - if (local == NULL) - return -ENODEV; + if (local == NULL) { + err = -ENODEV; + goto out; + } mutex_lock(&local->socket_lock); if (llcp_sock == local->sockets[llcp_sock->ssap]) local->sockets[llcp_sock->ssap] = NULL; else - list_del(&llcp_sock->list); + list_del_init(&llcp_sock->list); mutex_unlock(&local->socket_lock); @@ -354,9 +357,7 @@ static int llcp_sock_release(struct socket *sock) release_sock(accept_sk); - sock_set_flag(sk, SOCK_DEAD); sock_orphan(accept_sk); - sock_put(accept_sk); } } @@ -367,14 +368,13 @@ static int llcp_sock_release(struct socket *sock) sk->sk_state == LLCP_LISTEN) nfc_llcp_put_ssap(llcp_sock->local, llcp_sock->ssap); - sock_set_flag(sk, SOCK_DEAD); - release_sock(sk); +out: sock_orphan(sk); sock_put(sk); - return 0; + return err; } static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr, @@ -645,6 +645,8 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp) void nfc_llcp_sock_free(struct nfc_llcp_sock *sock) { + struct nfc_llcp_local *local = sock->local; + kfree(sock->service_name); skb_queue_purge(&sock->tx_queue); @@ -653,6 +655,11 @@ void nfc_llcp_sock_free(struct nfc_llcp_sock *sock) list_del_init(&sock->accept_queue); + if (local != NULL && sock == local->sockets[sock->ssap]) + local->sockets[sock->ssap] = NULL; + else + list_del_init(&sock->list); + sock->parent = NULL; } |