NFC: Close listening LLCP sockets when the device is gone
When the MAC link goes down, we should only keep the bound sockets
alive. They will be closed by sock_release or when the underlying
NFC device is moving away.
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index 6812b1e..0c8d25e 100644
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -45,7 +45,7 @@
write_unlock(&l->lock);
}
-static void nfc_llcp_socket_release(struct nfc_llcp_local *local)
+static void nfc_llcp_socket_release(struct nfc_llcp_local *local, bool listen)
{
struct sock *sk;
struct hlist_node *node, *tmp;
@@ -78,6 +78,11 @@
sock_orphan(accept_sk);
}
+
+ if (listen == true) {
+ release_sock(sk);
+ continue;
+ }
}
sk->sk_state = LLCP_CLOSED;
@@ -106,7 +111,7 @@
local = container_of(ref, struct nfc_llcp_local, ref);
list_del(&local->list);
- nfc_llcp_socket_release(local);
+ nfc_llcp_socket_release(local, false);
del_timer_sync(&local->link_timer);
skb_queue_purge(&local->tx_queue);
destroy_workqueue(local->tx_wq);
@@ -991,7 +996,7 @@
nfc_llcp_clear_sdp(local);
/* Close and purge all existing sockets */
- nfc_llcp_socket_release(local);
+ nfc_llcp_socket_release(local, true);
}
void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,