From c1293e4a34e2db9f491f2509f812d5c999a2b002 Mon Sep 17 00:00:00 2001 From: Minhong He Date: Mon, 3 Aug 2026 16:59:43 +0800 Subject: [PATCH] net: team: check register_netdevice_notifier() error in team_module_init() team_module_init() ignores register_netdevice_notifier() errors and continues module initialization, which can leave the team module loaded without its netdev notifier registered. Check the error and fail module initialization early. This is a future looking check, register_netdevice_notifier() only fails on double registration or if the registered notifier itself returns an error. Signed-off-by: Minhong He Link: https://patch.msgid.link/20260803085943.142261-1-heminhong@kylinos.cn Signed-off-by: Jakub Kicinski --- drivers/net/team/team_core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/team/team_core.c b/drivers/net/team/team_core.c index feaa75fbf8fc..beffbe450612 100644 --- a/drivers/net/team/team_core.c +++ b/drivers/net/team/team_core.c @@ -3229,7 +3229,9 @@ static int __init team_module_init(void) { int err; - register_netdevice_notifier(&team_notifier_block); + err = register_netdevice_notifier(&team_notifier_block); + if (err) + return err; err = rtnl_link_register(&team_link_ops); if (err)