From: Antonio Quartulli <[email protected]>

Netlink calls may access TCP global vars (i.e. when attaching
a TCP socket), therefore we need to make sure the
latters are initialized beforehand.

For this reason move the global TCP initialization at the top
of the module init function.

Fixes: 11851cbd60ea ("ovpn: implement TCP transport")
Signed-off-by: Antonio Quartulli <[email protected]>
---
 drivers/net/ovpn/main.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ovpn/main.c b/drivers/net/ovpn/main.c
index a881510aaac0..0a88ca6bbf97 100644
--- a/drivers/net/ovpn/main.c
+++ b/drivers/net/ovpn/main.c
@@ -244,8 +244,14 @@ static struct rtnl_link_ops ovpn_link_ops = {
 
 static int __init ovpn_init(void)
 {
-       int err = rtnl_link_register(&ovpn_link_ops);
+       int err;
 
+       /* init TCP first so that any subsequent netlink operation
+        * is ensured to access initialized TCP global vars
+        */
+       ovpn_tcp_init();
+
+       err = rtnl_link_register(&ovpn_link_ops);
        if (err) {
                pr_err("ovpn: can't register rtnl link ops: %d\n", err);
                return err;
@@ -257,8 +263,6 @@ static int __init ovpn_init(void)
                goto unreg_rtnl;
        }
 
-       ovpn_tcp_init();
-
        return 0;
 
 unreg_rtnl:
-- 
2.53.0



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