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net: dsa: call teardown method on probe failure 

commit 8fd54a73b7cda11548154451bdb4bde6d8ff74c7 upstream.

Since teardown is supposed to undo the effects of the setup method, it
should be called in the error path for dsa_switch_setup, not just in
dsa_switch_teardown.

Fixes: 5e3f847a02 ("net: dsa: Add teardown callback for drivers")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210204163351.2929670-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vladimir Oltean 2021-02-04 18:33:51 +02:00 committed by Greg Kroah-Hartman
parent 0b42ab0783
commit 5c53956a8d
1 changed files with 5 additions and 2 deletions
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7
net/dsa/dsa2.c
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@ -399,18 +399,21 @@ static int dsa_switch_setup(struct dsa_switch *ds)
ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev);
if (!ds->slave_mii_bus) {
err = -ENOMEM;
goto unregister_notifier;
goto teardown;
}
dsa_slave_mii_bus_init(ds);
err = mdiobus_register(ds->slave_mii_bus);
if (err < 0)
goto unregister_notifier;
goto teardown;
}
return 0;
teardown:
if (ds->ops->teardown)
ds->ops->teardown(ds);
unregister_notifier:
dsa_switch_unregister_notifier(ds);
unregister_devlink: