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[NETLINK]: don't reinitialize callback mutex

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Don't reinitialize the callback mutex the netlink_kernel_create caller
handed in, it is supposed to already be initialized and could already
be held by someone.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2007-04-25 14:01:17 -07:00 committed by David S. Miller
parent 6313c1e099
commit ffa4d7216e
1 changed files with 6 additions and 2 deletions
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8
net/netlink/af_netlink.c
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@ -388,8 +388,12 @@ static int __netlink_create(struct socket *sock, struct mutex *cb_mutex,
sock_init_data(sock, sk);
nlk = nlk_sk(sk);
nlk->cb_mutex = cb_mutex ? : &nlk->cb_def_mutex;
mutex_init(nlk->cb_mutex);
if (cb_mutex)
nlk->cb_mutex = cb_mutex;
else {
nlk->cb_mutex = &nlk->cb_def_mutex;
mutex_init(nlk->cb_mutex);
}
init_waitqueue_head(&nlk->wait);
sk->sk_destruct = netlink_sock_destruct;