From: Leon Romanovsky <leonro@nvidia.com>
Date: Wed, 21 Jul 2021 15:39:44 +0300
Subject: ionic: cleanly release devlink instance
Patch-mainline: v5.15-rc1
Git-commit: c2255ff47768c94a0ebc3968f007928bb47ea43b
References: bsc#1167773
The failure to register devlink will leave the system with dangled
devlink resource, which is not cleaned if devlink_port_register() fails.
In order to remove access to ".registered" field of struct devlink_port,
require both devlink_register and devlink_port_register to success and
check it through device pointer.
Fixes: fbfb8031533c ("ionic: Add hardware init and device commands")
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/pensando/ionic/ionic_devlink.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c
@@ -80,20 +80,20 @@ int ionic_devlink_register(struct ionic
devlink_port_attrs_set(&ionic->dl_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
0, false, 0, NULL, 0);
err = devlink_port_register(dl, &ionic->dl_port, 0);
- if (err)
+ if (err) {
dev_err(ionic->dev, "devlink_port_register failed: %d\n", err);
- else
- devlink_port_type_eth_set(&ionic->dl_port,
- ionic->master_lif->netdev);
+ devlink_unregister(dl);
+ return err;
+ }
- return err;
+ devlink_port_type_eth_set(&ionic->dl_port, ionic->master_lif->netdev);
+ return 0;
}
void ionic_devlink_unregister(struct ionic *ionic)
{
struct devlink *dl = priv_to_devlink(ionic);
- if (ionic->dl_port.registered)
- devlink_port_unregister(&ionic->dl_port);
+ devlink_port_unregister(&ionic->dl_port);
devlink_unregister(dl);
}