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

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: 186534a3f8 ("net: systemport: use the new fixed PHY helpers")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Johan Hovold 2016-11-28 19:24:58 +01:00 committed by David S. Miller
parent 9e08103130
commit 39f8b0d426
1 changed files with 12 additions and 5 deletions
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17
drivers/net/ethernet/broadcom/bcmsysport.c
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@ -1755,13 +1755,13 @@ static int bcm_sysport_probe(struct platform_device *pdev)
if (priv->irq0 <= 0 || priv->irq1 <= 0) {
dev_err(&pdev->dev, "invalid interrupts\n");
ret = -EINVAL;
goto err;
goto err_free_netdev;
}
priv->base = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(priv->base)) {
ret = PTR_ERR(priv->base);
goto err;
goto err_free_netdev;
}
priv->netdev = dev;
@ -1779,7 +1779,7 @@ static int bcm_sysport_probe(struct platform_device *pdev)
ret = of_phy_register_fixed_link(dn);
if (ret) {
dev_err(&pdev->dev, "failed to register fixed PHY\n");
goto err;
goto err_free_netdev;
}
priv->phy_dn = dn;
@ -1821,7 +1821,7 @@ static int bcm_sysport_probe(struct platform_device *pdev)
ret = register_netdev(dev);
if (ret) {
dev_err(&pdev->dev, "failed to register net_device\n");
goto err;
goto err_deregister_fixed_link;
}
priv->rev = topctrl_readl(priv, REV_CNTL) & REV_MASK;
@ -1832,7 +1832,11 @@ static int bcm_sysport_probe(struct platform_device *pdev)
priv->base, priv->irq0, priv->irq1, txq, rxq);
return 0;
err:
err_deregister_fixed_link:
if (of_phy_is_fixed_link(dn))
of_phy_deregister_fixed_link(dn);
err_free_netdev:
free_netdev(dev);
return ret;
}
@ -1840,11 +1844,14 @@ err:
static int bcm_sysport_remove(struct platform_device *pdev)
{
struct net_device *dev = dev_get_drvdata(&pdev->dev);
struct device_node *dn = pdev->dev.of_node;
/* Not much to do, ndo_close has been called
* and we use managed allocations
*/
unregister_netdev(dev);
if (of_phy_is_fixed_link(dn))
of_phy_deregister_fixed_link(dn);
free_netdev(dev);
dev_set_drvdata(&pdev->dev, NULL);