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NFC: Fix LLCP sockets releasing path

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The socket local pointer needs to be set to NULL when the adapter is
removed or the MAC goes down.
If the socket release code is called after such an event, the socket
reference count still needs to be decreased in order for the socket to
eventually be freed.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Samuel Ortiz
2012-03-05 01:03:51 +01:00
committed by John W. Linville
parent 47807d3dbb
commit 40c75f81d6
2 changed files with 26 additions and 12 deletions
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15
net/nfc/llcp/llcp.c
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@@ -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);