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NFC: Take a reference on the LLCP local pointer when creating a socket

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LLCP sockets point to their local LLCP service, so they need to take a
reference on it.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz
2012-05-04 11:24:16 +02:00
parent f8f5701bda
commit c7aa12252f
3 changed files with 40 additions and 24 deletions
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14
net/nfc/llcp/sock.c
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@@ -111,7 +111,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
}
llcp_sock->dev = dev;
llcp_sock->local = local;
llcp_sock->local = nfc_llcp_local_get(local);
llcp_sock->nfc_protocol = llcp_addr.nfc_protocol;
llcp_sock->service_name_len = min_t(unsigned int,
llcp_addr.service_name_len,
@@ -487,7 +487,7 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
}
llcp_sock->dev = dev;
llcp_sock->local = local;
llcp_sock->local = nfc_llcp_local_get(local);
llcp_sock->ssap = nfc_llcp_get_local_ssap(local);
if (llcp_sock->ssap == LLCP_SAP_MAX) {
ret = -ENOMEM;
@@ -701,8 +701,6 @@ 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);
@@ -710,13 +708,11 @@ void nfc_llcp_sock_free(struct nfc_llcp_sock *sock)
skb_queue_purge(&sock->tx_backlog_queue);
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);
list_del_init(&sock->list);
sock->parent = NULL;
nfc_llcp_local_put(sock->local);
}
static int llcp_sock_create(struct net *net, struct socket *sock,