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net: dsa: bcm_sf2: drop priv->master_mii_dn

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There used to be a of_node_put(priv->master_mii_dn) call in
bcm_sf2_mdio_unregister(), which was accidentally deleted in commit
6ca80638b9 ("net: dsa: Use conduit and user terms").

But it's not needed - we don't need to hold a reference on the
"brcm,unimac-mdio" OF node for that long, since we don't do anything
with it. We can release it as soon as we finish bcm_sf2_mdio_register().

Also reduce "if (err && dn)" to just "if (err)". We know "dn", aka the
former priv->master_mii_dn, is non-NULL. Otherwise, of_mdio_find_bus(dn)
would not have been able to find the bus behind "brcm,unimac-mdio".

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2024-01-04 16:00:37 +02:00 committed by David S. Miller
parent 04a4bc9ddd
commit 45f62ca5cc
2 changed files with 3 additions and 4 deletions
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6
drivers/net/dsa/bcm_sf2.c
View File

@ -621,8 +621,6 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
goto err_of_node_put;
}
priv->master_mii_dn = dn;
priv->user_mii_bus = mdiobus_alloc();
if (!priv->user_mii_bus) {
err = -ENOMEM;
@ -682,9 +680,11 @@ static int bcm_sf2_mdio_register(struct dsa_switch *ds)
}
err = mdiobus_register(priv->user_mii_bus);
if (err && dn)
if (err)
goto err_free_user_mii_bus;
of_node_put(dn);
return 0;
err_free_user_mii_bus:

1
drivers/net/dsa/bcm_sf2.h
View File

@ -107,7 +107,6 @@ struct bcm_sf2_priv {
/* Master and slave MDIO bus controller */
unsigned int indir_phy_mask;
struct device_node *master_mii_dn;
struct mii_bus *user_mii_bus;
struct mii_bus *master_mii_bus;