From dfc0a6d39aad6d633141726eb2e37e15bda1fccd Mon Sep 17 00:00:00 2001 From: David Rivshin Date: Wed, 16 Dec 2015 23:02:11 -0500 Subject: [PATCH] drivers: net: cpsw: increment reference count on fixed-link PHY node When a fixed-link sub-node exists in a slave node, the slave node is also the PHY node. Since this is a separate use of the slave node, of_node_get() should be used to increment the reference count. Fixes: 1f71e8c96fc6 ("drivers: net: cpsw: Add support for fixed-link PHY") Signed-off-by: David Rivshin Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/cpsw.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index bc6d20d..3b489ca 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -2036,16 +2036,21 @@ static int cpsw_probe_dt(struct cpsw_priv *priv, priv->phy_node = of_parse_phandle(slave_node, "phy-handle", 0); parp = of_get_property(slave_node, "phy_id", &lenp); if (of_phy_is_fixed_link(slave_node)) { - struct phy_device *pd; + struct device_node *phy_node; + struct phy_device *phy_dev; + /* In the case of a fixed PHY, the DT node associated + * to the PHY is the Ethernet MAC DT node. + */ ret = of_phy_register_fixed_link(slave_node); if (ret) return ret; - pd = of_phy_find_device(slave_node); - if (!pd) + phy_node = of_node_get(slave_node); + phy_dev = of_phy_find_device(phy_node); + if (!phy_dev) return -ENODEV; snprintf(slave_data->phy_id, sizeof(slave_data->phy_id), - PHY_ID_FMT, pd->bus->id, pd->addr); + PHY_ID_FMT, phy_dev->bus->id, phy_dev->addr); } else if (parp) { u32 phyid; struct device_node *mdio_node; -- 2.7.4