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| author | Gao feng <gaofeng@cn.fujitsu.com> | 2013-06-13 10:05:38 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-13 00:45:48 -0700 |
| commit | ca15febfe98f7c681ac345fc1d2ee1b8decaa493 (patch) | |
| tree | a4a0e2abd432397ccca05b1e5144055cd6479649 | |
| parent | e3d73bcedfdf66d21349fee00241b0931d28a943 (diff) | |
| download | linux-stable-ca15febfe98f7c681ac345fc1d2ee1b8decaa493.tar.gz linux-stable-ca15febfe98f7c681ac345fc1d2ee1b8decaa493.tar.bz2 linux-stable-ca15febfe98f7c681ac345fc1d2ee1b8decaa493.zip | |
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>
| -rw-r--r-- | net/netlink/af_netlink.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 9b6b115e008f..8978755251f7 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(); |