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authorJohn W. Linville <linville@tuxdriver.com>2013-03-18 09:39:21 -0400
committerJohn W. Linville <linville@tuxdriver.com>2013-03-18 09:39:21 -0400
commit49c87cd1eac1f798c5bad7f7eb809e6df36b6c56 (patch)
tree8d6905466a05d6539e06d189cf88b71095ac0a79 /net/nfc
parent4969b41798e512689bba57c8c44d873216eba814 (diff)
parent9437a248e7cac427c898bdb11bd1ac6844a1ead4 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts: net/nfc/llcp/llcp.c
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/llcp/llcp.c62
-rw-r--r--net/nfc/llcp/sock.c2
2 files changed, 55 insertions, 9 deletions
diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index 3361170cb26..bb67b98b979 100644
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -68,7 +68,8 @@ static void nfc_llcp_socket_purge(struct nfc_llcp_sock *sock)
}
}
-static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
+static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen,
+ int err)
{
struct sock *sk;
struct hlist_node *tmp;
@@ -100,7 +101,10 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
nfc_llcp_accept_unlink(accept_sk);
+ if (err)
+ accept_sk->sk_err = err;
accept_sk->sk_state = LLCP_CLOSED;
+ accept_sk->sk_state_change(sk);
bh_unlock_sock(accept_sk);
@@ -123,7 +127,10 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
continue;
}
+ if (err)
+ sk->sk_err = err;
sk->sk_state = LLCP_CLOSED;
+ sk->sk_state_change(sk);
bh_unlock_sock(sk);
@@ -133,6 +140,36 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
}
write_unlock(&local->sockets.lock);
+
+ /*
+ * If we want to keep the listening sockets alive,
+ * we don't touch the RAW ones.
+ */
+ if (listen == true)
+ return;
+
+ write_lock(&local->raw_sockets.lock);
+
+ sk_for_each_safe(sk, tmp, &local->raw_sockets.head) {
+ llcp_sock = nfc_llcp_sock(sk);
+
+ bh_lock_sock(sk);
+
+ nfc_llcp_socket_purge(llcp_sock);
+
+ if (err)
+ sk->sk_err = err;
+ sk->sk_state = LLCP_CLOSED;
+ sk->sk_state_change(sk);
+
+ bh_unlock_sock(sk);
+
+ sock_orphan(sk);
+
+ sk_del_node_init(sk);
+ }
+
+ write_unlock(&local->raw_sockets.lock);
}
struct nfc_llcp_local *nfc_llcp_local_get(struct nfc_llcp_local *local)
@@ -142,14 +179,9 @@ struct nfc_llcp_local *nfc_llcp_local_get(struct nfc_llcp_local *local)
return local;
}
-static void local_release(struct kref *ref)
+static void local_cleanup(struct nfc_llcp_local *local, bool listen)
{
- struct nfc_llcp_local *local;
-
- local = container_of(ref, struct nfc_llcp_local, ref);
-
- list_del(&local->list);
- nfc_llcp_socket_release(local, false);
+ nfc_llcp_socket_release(local, listen, ENXIO);
del_timer_sync(&local->link_timer);
skb_queue_purge(&local->tx_queue);
cancel_work_sync(&local->tx_work);
@@ -159,6 +191,16 @@ static void local_release(struct kref *ref)
del_timer_sync(&local->sdreq_timer);
cancel_work_sync(&local->sdreq_timeout_work);
nfc_llcp_free_sdp_tlv_list(&local->pending_sdreqs);
+}
+
+static void local_release(struct kref *ref)
+{
+ struct nfc_llcp_local *local;
+
+ local = container_of(ref, struct nfc_llcp_local, ref);
+
+ list_del(&local->list);
+ local_cleanup(local, false);
kfree(local);
}
@@ -1433,7 +1475,7 @@ void nfc_llcp_mac_is_down(struct nfc_dev *dev)
return;
/* Close and purge all existing sockets */
- nfc_llcp_socket_release(local, true);
+ nfc_llcp_socket_release(local, true, 0);
}
void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,
@@ -1519,6 +1561,8 @@ void nfc_llcp_unregister_device(struct nfc_dev *dev)
return;
}
+ local_cleanup(local, false);
+
nfc_llcp_local_put(local);
}
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 827d7d755d0..f1b377e247f 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -396,6 +396,8 @@ struct sock *nfc_llcp_accept_dequeue(struct sock *parent,
pr_debug("Returning sk state %d\n", sk->sk_state);
+ sk_acceptq_removed(parent);
+
return sk;
}