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OpenCloudOS-Kernel
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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>
This commit is contained in:
Samuel Ortiz 2012-06-22 14:40:34 +02:00 committed by John W. Linville
parent b8e7a06d9c
commit 4d22ea1532
1 changed files with 8 additions and 3 deletions
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11
net/nfc/llcp/llcp.c
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@ -45,7 +45,7 @@ void nfc_llcp_sock_unlink(struct llcp_sock_list *l, struct sock *sk)
write_unlock(&l->lock); 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 sock *sk;
struct hlist_node *node, *tmp; struct hlist_node *node, *tmp;
@ -78,6 +78,11 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local)
sock_orphan(accept_sk); sock_orphan(accept_sk);
} }
if (listen == true) {
release_sock(sk);
continue;
}
} }
sk->sk_state = LLCP_CLOSED; sk->sk_state = LLCP_CLOSED;
@ -106,7 +111,7 @@ static void local_release(struct kref *ref)
local = container_of(ref, struct nfc_llcp_local, ref); local = container_of(ref, struct nfc_llcp_local, ref);
list_del(&local->list); list_del(&local->list);
nfc_llcp_socket_release(local); nfc_llcp_socket_release(local, false);
del_timer_sync(&local->link_timer); del_timer_sync(&local->link_timer);
skb_queue_purge(&local->tx_queue); skb_queue_purge(&local->tx_queue);
destroy_workqueue(local->tx_wq); destroy_workqueue(local->tx_wq);
@ -991,7 +996,7 @@ void nfc_llcp_mac_is_down(struct nfc_dev *dev)
nfc_llcp_clear_sdp(local); nfc_llcp_clear_sdp(local);
/* Close and purge all existing sockets */ /* 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, void nfc_llcp_mac_is_up(struct nfc_dev *dev, u32 target_idx,