From ffa4d7216e848fbfdcb8e6f0bb66abeaa1888964 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Wed, 25 Apr 2007 14:01:17 -0700 Subject: [PATCH] [NETLINK]: don't reinitialize callback mutex 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 Signed-off-by: David S. Miller --- net/netlink/af_netlink.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index ec16c9b7b3..64d4b27f25 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -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; -- 2.20.1