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| author | Johan Hovold <johan@kernel.org> | 2016-11-28 19:24:54 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-29 23:17:02 -0500 |
| commit | 0d8f3c67151faaa80e332c254372dca58fb2a9d4 (patch) | |
| tree | f9a76fd26ee475b2258df059c386abb80099f089 | |
| parent | a510887824171ad260cc4a2603396c6247fdd091 (diff) | |
| download | linux-0d8f3c67151faaa80e332c254372dca58fb2a9d4.tar.gz linux-0d8f3c67151faaa80e332c254372dca58fb2a9d4.tar.bz2 linux-0d8f3c67151faaa80e332c254372dca58fb2a9d4.zip | |
net: dsa: slave: fix of-node leak and phy priority
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 <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/dsa/slave.c | 7 |
1 files 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) |