diff options
| -rw-r--r-- | drivers/net/phy/phy.c | 26 | ||||
| -rw-r--r-- | drivers/net/phy/phy_device.c | 6 | ||||
| -rw-r--r-- | include/linux/phy.h | 3 |
3 files changed, 28 insertions, 7 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 7cc1b7dcfe05..d6f7838455dd 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -580,7 +580,7 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd) return 0; case SIOCSHWTSTAMP: - if (phydev->drv->hwtstamp) + if (phydev->drv && phydev->drv->hwtstamp) return phydev->drv->hwtstamp(phydev, ifr); /* fall through */ @@ -603,6 +603,9 @@ int phy_start_aneg(struct phy_device *phydev) { int err; + if (!phydev->drv) + return -EIO; + mutex_lock(&phydev->lock); if (AUTONEG_DISABLE == phydev->autoneg) @@ -975,7 +978,7 @@ void phy_state_machine(struct work_struct *work) old_state = phydev->state; - if (phydev->drv->link_change_notify) + if (phydev->drv && phydev->drv->link_change_notify) phydev->drv->link_change_notify(phydev); switch (phydev->state) { @@ -1286,6 +1289,9 @@ EXPORT_SYMBOL(phy_write_mmd_indirect); */ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable) { + if (!phydev->drv) + return -EIO; + /* According to 802.3az,the EEE is supported only in full duplex-mode. * Also EEE feature is active when core is operating with MII, GMII * or RGMII (all kinds). Internal PHYs are also allowed to proceed and @@ -1363,6 +1369,9 @@ EXPORT_SYMBOL(phy_init_eee); */ int phy_get_eee_err(struct phy_device *phydev) { + if (!phydev->drv) + return -EIO; + return phy_read_mmd_indirect(phydev, MDIO_PCS_EEE_WK_ERR, MDIO_MMD_PCS); } EXPORT_SYMBOL(phy_get_eee_err); @@ -1379,6 +1388,9 @@ int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data) { int val; + if (!phydev->drv) + return -EIO; + /* Get Supported EEE */ val = phy_read_mmd_indirect(phydev, MDIO_PCS_EEE_ABLE, MDIO_MMD_PCS); if (val < 0) @@ -1412,6 +1424,9 @@ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data) { int val = ethtool_adv_to_mmd_eee_adv_t(data->advertised); + if (!phydev->drv) + return -EIO; + /* Mask prohibited EEE modes */ val &= ~phydev->eee_broken_modes; @@ -1423,7 +1438,7 @@ EXPORT_SYMBOL(phy_ethtool_set_eee); int phy_ethtool_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol) { - if (phydev->drv->set_wol) + if (phydev->drv && phydev->drv->set_wol) return phydev->drv->set_wol(phydev, wol); return -EOPNOTSUPP; @@ -1432,7 +1447,7 @@ EXPORT_SYMBOL(phy_ethtool_set_wol); void phy_ethtool_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol) { - if (phydev->drv->get_wol) + if (phydev->drv && phydev->drv->get_wol) phydev->drv->get_wol(phydev, wol); } EXPORT_SYMBOL(phy_ethtool_get_wol); @@ -1468,6 +1483,9 @@ int phy_ethtool_nway_reset(struct net_device *ndev) if (!phydev) return -ENODEV; + if (!phydev->drv) + return -EIO; + return genphy_restart_aneg(phydev); } EXPORT_SYMBOL(phy_ethtool_nway_reset); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 7f9319586b7e..daec6555f3b1 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1094,7 +1094,7 @@ int phy_suspend(struct phy_device *phydev) if (wol.wolopts) return -EBUSY; - if (phydrv->suspend) + if (phydev->drv && phydrv->suspend) ret = phydrv->suspend(phydev); if (ret) @@ -1111,7 +1111,7 @@ int phy_resume(struct phy_device *phydev) struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver); int ret = 0; - if (phydrv->resume) + if (phydev->drv && phydrv->resume) ret = phydrv->resume(phydev); if (ret) @@ -1790,7 +1790,7 @@ static int phy_remove(struct device *dev) phydev->state = PHY_DOWN; mutex_unlock(&phydev->lock); - if (phydev->drv->remove) + if (phydev->drv && phydev->drv->remove) phydev->drv->remove(phydev); phydev->drv = NULL; diff --git a/include/linux/phy.h b/include/linux/phy.h index d9bdf53e0514..772476028a65 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -807,6 +807,9 @@ int phy_stop_interrupts(struct phy_device *phydev); static inline int phy_read_status(struct phy_device *phydev) { + if (!phydev->drv) + return -EIO; + return phydev->drv->read_status(phydev); } |