Add unregister_fib_notifier as rollback of register_fib_notifier.

Fixes: 4394fbcb78cf ("net: marvell: prestera: handle fib notifications")
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
---
 drivers/net/ethernet/marvell/prestera/prestera_router.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_router.c b/drivers/net/ethernet/marvell/prestera/prestera_router.c
index 3754d8aec76d..3c8116f16b4d 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_router.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_router.c
@@ -588,6 +588,7 @@ int prestera_router_init(struct prestera_switch *sw)
 
 void prestera_router_fini(struct prestera_switch *sw)
 {
+	unregister_fib_notifier(&init_net, &sw->router->fib_nb);
 	unregister_inetaddr_notifier(&sw->router->inetaddr_nb);
 	unregister_inetaddr_validator_notifier(&sw->router->inetaddr_valid_nb);
 	rhashtable_destroy(&sw->router->kern_fib_cache_ht);
-- 
2.17.1

Hello:

This patch was applied to netdev/net.git (master)
by Paolo Abeni <pabeni@redhat.com>:

On Sun, 10 Jul 2022 15:20:21 +0300 you wrote:
> Add unregister_fib_notifier as rollback of register_fib_notifier.
> 
> Fixes: 4394fbcb78cf ("net: marvell: prestera: handle fib notifications")
> Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
> ---
>  drivers/net/ethernet/marvell/prestera/prestera_router.c | 1 +
>  1 file changed, 1 insertion(+)

Here is the summary with links:
  - [net] net: marvell: prestera: fix missed deinit sequence
    https://git.kernel.org/netdev/net/c/f946964a9f79

You are awesome, thank you!
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