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| author | Florian Fainelli <f.fainelli@gmail.com> | 2014-12-11 23:49:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-12-12 05:00:08 +0300 |
| commit | 9697f1cde9901c00298fd1313b4aaf96f287bf7a (patch) | |
| tree | 2298b1c69843267ef079f7d7486caf1f3e433c79 | |
| parent | 53013c77437c9b00658fc112b4e0aecd221c512a (diff) | |
| download | linux-9697f1cde9901c00298fd1313b4aaf96f287bf7a.tar.xz | |
net: dsa: propagate error code from dsa_slave_phy_setup
In case we cannot attach to our slave netdevice PHY, error out and
propagate that error up to the caller: dsa_slave_create().
Fixes: 0d8bcdd383b8 ("net: dsa: allow for more complex PHY setups")
Signed-off-by: Andrey Volkov <andrey.volkov@nexvision.fr>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/dsa/slave.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/net/dsa/slave.c b/net/dsa/slave.c index da64ba9d825d..515569ffde8a 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -512,7 +512,7 @@ static int dsa_slave_fixed_link_update(struct net_device *dev, } /* slave device setup *******************************************************/ -static void dsa_slave_phy_setup(struct dsa_slave_priv *p, +static int dsa_slave_phy_setup(struct dsa_slave_priv *p, struct net_device *slave_dev) { struct dsa_switch *ds = p->parent; @@ -533,7 +533,7 @@ static void dsa_slave_phy_setup(struct dsa_slave_priv *p, ret = of_phy_register_fixed_link(port_dn); if (ret) { netdev_err(slave_dev, "failed to register fixed PHY\n"); - return; + return ret; } phy_is_fixed = true; phy_dn = port_dn; @@ -556,7 +556,7 @@ static void dsa_slave_phy_setup(struct dsa_slave_priv *p, if (!p->phy) { p->phy = ds->slave_mii_bus->phy_map[p->port]; if (!p->phy) - return; + return -ENODEV; phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, p->phy_interface); @@ -564,6 +564,8 @@ static void dsa_slave_phy_setup(struct dsa_slave_priv *p, netdev_info(slave_dev, "attached PHY at address %d [%s]\n", p->phy->addr, p->phy->drv->name); } + + return 0; } int dsa_slave_suspend(struct net_device *slave_dev) @@ -656,12 +658,17 @@ dsa_slave_create(struct dsa_switch *ds, struct device *parent, p->old_link = -1; p->old_duplex = -1; - dsa_slave_phy_setup(p, slave_dev); + ret = dsa_slave_phy_setup(p, slave_dev); + if (ret) { + free_netdev(slave_dev); + return NULL; + } ret = register_netdev(slave_dev); if (ret) { netdev_err(master, "error %d registering interface %s\n", ret, slave_dev->name); + phy_disconnect(p->phy); free_netdev(slave_dev); return NULL; } |