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net: ethernet: ucc_geth: fix fixed-link phydev leaks

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Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on probe errors and on driver unbind.

Fixes: 87009814cd ("ucc_geth: use the new fixed PHY helpers")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johan Hovold 2016-11-28 19:25:03 +01:00 committed by David S. Miller
parent 42c7004245
commit 0807c4ceb8
1 changed files with 16 additions and 7 deletions
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23
drivers/net/ethernet/freescale/ucc_geth.c
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@ -3868,9 +3868,8 @@ static int ucc_geth_probe(struct platform_device* ofdev)
dev = alloc_etherdev(sizeof(*ugeth));
if (dev == NULL) {
of_node_put(ug_info->tbi_node);
of_node_put(ug_info->phy_node);
return -ENOMEM;
err = -ENOMEM;
goto err_deregister_fixed_link;
}
ugeth = netdev_priv(dev);
@ -3907,10 +3906,7 @@ static int ucc_geth_probe(struct platform_device* ofdev)
if (netif_msg_probe(ugeth))
pr_err("%s: Cannot register net device, aborting\n",
dev->name);
free_netdev(dev);
of_node_put(ug_info->tbi_node);
of_node_put(ug_info->phy_node);
return err;
goto err_free_netdev;
}
mac_addr = of_get_mac_address(np);
@ -3923,16 +3919,29 @@ static int ucc_geth_probe(struct platform_device* ofdev)
ugeth->node = np;
return 0;
err_free_netdev:
free_netdev(dev);
err_deregister_fixed_link:
if (of_phy_is_fixed_link(np))
of_phy_deregister_fixed_link(np);
of_node_put(ug_info->tbi_node);
of_node_put(ug_info->phy_node);
return err;
}
static int ucc_geth_remove(struct platform_device* ofdev)
{
struct net_device *dev = platform_get_drvdata(ofdev);
struct ucc_geth_private *ugeth = netdev_priv(dev);
struct device_node *np = ofdev->dev.of_node;
unregister_netdev(dev);
free_netdev(dev);
ucc_geth_memclean(ugeth);
if (of_phy_is_fixed_link(np))
of_phy_deregister_fixed_link(np);
of_node_put(ugeth->ug_info->tbi_node);
of_node_put(ugeth->ug_info->phy_node);