diff options
| author |   Johan Hovold <johan@kernel.org> | 2016-11-17 17:40:01 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-11-18 13:48:53 -0500 |
| commit | 8cbcc466fd4abd38a14b9d9b76c63a2cb7006554 (patch) | |
| tree | 68075bfa1f37f62b88fe4482c043889c21d38535 /drivers/net | |
| parent | net: ethernet: ti: cpsw: fix deferred probe (diff) | |
| download | linux-dev-8cbcc466fd4abd38a14b9d9b76c63a2cb7006554.tar.xz linux-dev-8cbcc466fd4abd38a14b9d9b76c63a2cb7006554.zip | |
net: ethernet: ti: cpsw: fix of_node and phydev leaks
Make sure to drop references taken and deregister devices registered
during probe on probe errors (including deferred probe) and driver
unbind.
Specifically, PHY of-node references were never released and fixed-link
PHY devices were never deregistered.
Fixes: 9e42f715264f ("drivers: net: cpsw: add phy-handle parsing")
Fixes: 1f71e8c96fc6 ("drivers: net: cpsw: Add support for fixed-link
PHY")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 5d14abb06486..c3b78bc4fe58 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -2443,6 +2443,41 @@ no_phy_slave: static void cpsw_remove_dt(struct platform_device *pdev) { + struct net_device *ndev = platform_get_drvdata(pdev); + struct cpsw_common *cpsw = ndev_to_cpsw(ndev); + struct cpsw_platform_data *data = &cpsw->data; + struct device_node *node = pdev->dev.of_node; + struct device_node *slave_node; + int i = 0; + + for_each_available_child_of_node(node, slave_node) { + struct cpsw_slave_data *slave_data = &data->slave_data[i]; + + if (strcmp(slave_node->name, "slave")) + continue; + + if (of_phy_is_fixed_link(slave_node)) { + struct phy_device *phydev; + + phydev = of_phy_find_device(slave_node); + if (phydev) { + fixed_phy_unregister(phydev); + /* Put references taken by + * of_phy_find_device() and + * of_phy_register_fixed_link(). + */ + phy_device_free(phydev); + phy_device_free(phydev); + } + } + + of_node_put(slave_data->phy_node); + + i++; + if (i == data->slaves) + break; + } + of_platform_depopulate(&pdev->dev); } |