Re: [PATCH net-next] ionic: cleanly release devlink instance
From: Shannon Nelson <hidden>
Date: 2021-07-21 15:56:03
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On 7/21/21 5:39 AM, Leon Romanovsky wrote:
From: Leon Romanovsky <leonro@nvidia.com>
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 <redacted>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>Sure, thanks. Acked-by: Shannon Nelson <redacted>
quoted hunk ↗ jump to hunk
--- Future series will remove .registered field from the devlink. --- .../net/ethernet/pensando/ionic/ionic_devlink.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)diff --git a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c index b41301a5b0df..cd520e4c5522 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_devlink.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_devlink.c@@ -91,20 +91,20 @@ int ionic_devlink_register(struct ionic *ionic) attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; devlink_port_attrs_set(&ionic->dl_port, &attrs); 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->lif->netdev); + devlink_unregister(dl); + return err; + } - return err; + devlink_port_type_eth_set(&ionic->dl_port, ionic->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); }