netdevsim: don't leak devlink resources

Devlink resources registered with devlink_resource_register() have
to be unregistered.

Fixes: 37923ed ("netdevsim: Add simple FIB resource controller via devlink")
Signed-off-by: Jakub Kicinski <[email protected]>
Reviewed-by: Quentin Monnet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Jakub Kicinski

drivers/net/netdevsim/devlink.c

@@ -207,6 +207,7 @@ void nsim_devlink_teardown(struct netdevsim *ns)
 		struct net *net = nsim_to_net(ns);
 		bool *reg_devlink = net_generic(net, nsim_devlink_id);
 
+		devlink_resources_unregister(ns->devlink, NULL);
 		devlink_unregister(ns->devlink);
 		devlink_free(ns->devlink);
 		ns->devlink = NULL;