Check, if rtnl_link_register() call in batadv_init() was successful Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: a4ac28c0d06a ("batman-adv: Allow to use rntl_link for device creation/deletion") Signed-off-by: Artem Chernyshev <artem.chernyshev(a)red-soft.ru> --- net/batman-adv/main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index e8a449915566..04cd9682bd29 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -113,7 +113,11 @@ static int __init batadv_init(void) goto err_create_wq; register_netdevice_notifier(&batadv_hard_if_notifier); - rtnl_link_register(&batadv_link_ops); + ret = rtnl_link_register(&batadv_link_ops); + if (ret) { + pr_err("Can't register link_ops\n"); + goto err_create_wq; + } batadv_netlink_register(); pr_info("B.A.T.M.A.N. advanced %s (compatibility version %i) loaded\n", -- 2.30.3