diff options
| -rw-r--r-- | drivers/net/phy/phy-core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c index 4d96f7a8e8f2..5458ed1b87a8 100644 --- a/drivers/net/phy/phy-core.c +++ b/drivers/net/phy/phy-core.c @@ -697,11 +697,17 @@ EXPORT_SYMBOL_GPL(phy_modify_mmd); static int __phy_read_page(struct phy_device *phydev) { + if (WARN_ONCE(!phydev->drv->read_page, "read_page callback not available, PHY driver not loaded?\n")) + return -EOPNOTSUPP; + return phydev->drv->read_page(phydev); } static int __phy_write_page(struct phy_device *phydev, int page) { + if (WARN_ONCE(!phydev->drv->write_page, "write_page callback not available, PHY driver not loaded?\n")) + return -EOPNOTSUPP; + return phydev->drv->write_page(phydev, page); } |