diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/phy/phy_device.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 67571f9..14d57d0 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -860,6 +860,7 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, struct module *ndev_owner = dev->dev.parent->driver->owner; struct mii_bus *bus = phydev->mdio.bus; struct device *d = &phydev->mdio.dev; + bool using_genphy = false; int err; /* For Ethernet device drivers that register their own MDIO bus, we @@ -872,11 +873,6 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, return -EIO; } - if (!try_module_get(d->driver->owner)) { - dev_err(&dev->dev, "failed to get the device driver module\n"); - return -EIO; - } - get_device(d); /* Assume that if there is no driver, that it doesn't @@ -890,12 +886,22 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, d->driver = &genphy_driver[GENPHY_DRV_1G].mdiodrv.driver; + using_genphy = true; + } + + if (!try_module_get(d->driver->owner)) { + dev_err(&dev->dev, "failed to get the device driver module\n"); + err = -EIO; + goto error_put_device; + } + + if (using_genphy) { err = d->driver->probe(d); if (err >= 0) err = device_bind_driver(d); if (err) - goto error; + goto error_module_put; } if (phydev->attached_dev) { @@ -931,8 +937,14 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, return err; error: - put_device(d); + /* phy_detach() does all of the cleanup below */ + phy_detach(phydev); + return err; + +error_module_put: module_put(d->driver->owner); +error_put_device: + put_device(d); if (ndev_owner != bus->owner) module_put(bus->owner); return err; @@ -993,6 +1005,8 @@ void phy_detach(struct phy_device *phydev) phydev->attached_dev = NULL; phy_suspend(phydev); + module_put(phydev->mdio.dev.driver->owner); + /* If the device had no specific driver before (i.e. - it * was using the generic driver), we unbind the device * from the generic driver so that there's a chance a @@ -1013,7 +1027,6 @@ void phy_detach(struct phy_device *phydev) bus = phydev->mdio.bus; put_device(&phydev->mdio.dev); - module_put(phydev->mdio.dev.driver->owner); if (ndev_owner != bus->owner) module_put(bus->owner); } |