aboutsummaryrefslogtreecommitdiff
path: root/net/netlink
diff options
context:
space:
mode:
authorGao feng <gaofeng@cn.fujitsu.com>2013-06-13 10:05:38 +0800
committerDavid S. Miller <davem@davemloft.net>2013-06-13 00:45:48 -0700
commitca15febfe98f7c681ac345fc1d2ee1b8decaa493 (patch)
treea4a0e2abd432397ccca05b1e5144055cd6479649 /net/netlink
parente3d73bcedfdf66d21349fee00241b0931d28a943 (diff)
downloadlinux-ca15febfe98f7c681ac345fc1d2ee1b8decaa493.tar.gz
netlink: make compare exist all the time
Commit da12c90e099789a63073fc82a19542ce54d4efb9 "netlink: Add compare function for netlink_table" only set compare at the time we create kernel netlink, and reset compare to NULL at the time we finially release netlink socket, but netlink_lookup wants the compare exist always. So we should set compare after we allocate nl_table, and never reset it. make comapre exist all the time. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlink')
-rw-r--r--net/netlink/af_netlink.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 9b6b115e008..8978755251f 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1174,7 +1174,6 @@ static int netlink_release(struct socket *sock)
kfree_rcu(old, rcu);
nl_table[sk->sk_protocol].module = NULL;
nl_table[sk->sk_protocol].bind = NULL;
- nl_table[sk->sk_protocol].compare = NULL;
nl_table[sk->sk_protocol].flags = 0;
nl_table[sk->sk_protocol].registered = 0;
}
@@ -2326,7 +2325,6 @@ __netlink_kernel_create(struct net *net, int unit, struct module *module,
rcu_assign_pointer(nl_table[unit].listeners, listeners);
nl_table[unit].cb_mutex = cb_mutex;
nl_table[unit].module = module;
- nl_table[unit].compare = netlink_compare;
if (cfg) {
nl_table[unit].bind = cfg->bind;
nl_table[unit].flags = cfg->flags;
@@ -2973,6 +2971,8 @@ static int __init netlink_proto_init(void)
hash->shift = 0;
hash->mask = 0;
hash->rehash_time = jiffies;
+
+ nl_table[i].compare = netlink_compare;
}
netlink_add_usersock_entry();