[PATCH net 01/16] net: dsa: slave: fix of-node leak and phy priority
From: Johan Hovold <hidden>
Date: 2016-11-28 18:28:10
Also in:
linux-mediatek, linux-omap, linux-renesas-soc, linuxppc-dev, lkml, netdev
Subsystem:
networking [dsa], networking [general], the rest · Maintainers:
Andrew Lunn, Vladimir Oltean, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Make sure to drop the reference taken by of_parse_phandle() before
returning from dsa_slave_phy_setup().
Note that this also modifies the PHY priority so that any fixed-link
node is only parsed when no phy-handle is given, which is in accordance
with the common scheme for this.
Fixes: 0d8bcdd383b8 ("net: dsa: allow for more complex PHY setups")
Signed-off-by: Johan Hovold <redacted>
---
net/dsa/slave.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 6b1282c006b1..2a5c20a13fe4 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c@@ -1125,7 +1125,7 @@ static int dsa_slave_phy_setup(struct dsa_slave_priv *p, p->phy_interface = mode; phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); - if (of_phy_is_fixed_link(port_dn)) { + if (!phy_dn && of_phy_is_fixed_link(port_dn)) { /* In the case of a fixed PHY, the DT node associated * to the fixed PHY is the Port DT node */
@@ -1135,7 +1135,7 @@ static int dsa_slave_phy_setup(struct dsa_slave_priv *p, return ret; } phy_is_fixed = true; - phy_dn = port_dn; + phy_dn = of_node_get(port_dn); } if (ds->ops->get_phy_flags)
@@ -1154,6 +1154,7 @@ static int dsa_slave_phy_setup(struct dsa_slave_priv *p, ret = dsa_slave_phy_connect(p, slave_dev, phy_id); if (ret) { netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); + of_node_put(phy_dn); return ret; } } else {
@@ -1162,6 +1163,8 @@ static int dsa_slave_phy_setup(struct dsa_slave_priv *p, phy_flags, p->phy_interface); } + + of_node_put(phy_dn); } if (p->phy && phy_is_fixed)
--
2.7.3
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