ipv4: nexthop: handle errors in nexthop_init()

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nexthop_init() ignores errors from register_pernet_subsys() and
register_netdevice_notifier(), so a partial initialization can appear
successful.

Check those steps and unwind prior registrations on failure.

Do not check rtnl_register_many(): for built-in code it panics on
failure, so the call cannot return an error to nexthop_init().

Cc: stable+noautosel@kernel.org # untested fix to unlikely error path
Signed-off-by: Minhong He <heminhong@kylinos.cn>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260731025249.80026-1-heminhong@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Minhong He 2026-07-31 10:52:49 +08:00 • committed by Jakub Kicinski

parent 30ce0cb576

commit c0fd47726c

1 changed files with 12 additions and 2 deletions

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net/ipv4/nexthop.c

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