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net: devlink: add WARN_ON_ONCE to check return value of unregister_netdevice_notifier_net() call

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As the return value is not 0 only in case there is no such notifier
block registered, add a WARN_ON_ONCE() to yell about it.

Suggested-by: Ido Schimmel <idosch@idosch.org>
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20221125100255.1786741-1-jiri@resnulli.us
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Jiri Pirko 2022-11-25 11:02:55 +01:00 committed by Paolo Abeni
parent cb55ff7ac4
commit 7666dbec72
1 changed files with 2 additions and 2 deletions
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4
net/core/devlink.c
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@ -9907,8 +9907,8 @@ void devlink_free(struct devlink *devlink)
xa_destroy(&devlink->snapshot_ids);
unregister_netdevice_notifier_net(devlink_net(devlink),
&devlink->netdevice_nb);
WARN_ON_ONCE(unregister_netdevice_notifier_net(devlink_net(devlink),
&devlink->netdevice_nb));
xa_erase(&devlinks, devlink->index);