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net: dsa: slave: fix fixed-link phydev leaks 

Make sure to deregister and free any fixed-link PHY registered using
of_phy_register_fixed_link() on slave-setup errors and on slave destroy.

Fixes: 0d8bcdd383 ("net: dsa: allow for more complex PHY setups")
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 19:25:09 +01:00 committed by David S. Miller
parent 14cab6f651
commit 881eadabe7
1 changed files with 11 additions and 1 deletions
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12
net/dsa/slave.c
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@ -1177,6 +1177,8 @@ static int dsa_slave_phy_setup(struct dsa_slave_priv *p,
ret = dsa_slave_phy_connect(p, slave_dev, p->port); ret = dsa_slave_phy_connect(p, slave_dev, p->port);
if (ret) { if (ret) {
netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret); netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret);
if (phy_is_fixed)
of_phy_deregister_fixed_link(port_dn);
return ret; return ret;
} }
} }
@ -1292,10 +1294,18 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
void dsa_slave_destroy(struct net_device *slave_dev) void dsa_slave_destroy(struct net_device *slave_dev)
{ {
struct dsa_slave_priv *p = netdev_priv(slave_dev); struct dsa_slave_priv *p = netdev_priv(slave_dev);
struct dsa_switch *ds = p->parent;
struct device_node *port_dn;
port_dn = ds->ports[p->port].dn;
netif_carrier_off(slave_dev); netif_carrier_off(slave_dev);
if (p->phy) if (p->phy) {
phy_disconnect(p->phy); phy_disconnect(p->phy);
if (of_phy_is_fixed_link(port_dn))
of_phy_deregister_fixed_link(port_dn);
}
unregister_netdev(slave_dev); unregister_netdev(slave_dev);
free_netdev(slave_dev); free_netdev(slave_dev);
} }