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Subject[PATCH net 16/16] net: dsa: slave: fix fixed-link phydev leaks
Date
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: 0d8bcdd383b8 ("net: dsa: allow for more complex PHY setups")
Signed-off-by: Johan Hovold <johan@kernel.org>
---
net/dsa/slave.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 2a5c20a13fe4..30e2e21d7619 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -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);
if (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;
}
}
@@ -1292,10 +1294,18 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
void dsa_slave_destroy(struct net_device *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);
- if (p->phy)
+ if (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);
free_netdev(slave_dev);
}
--
2.7.3
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