phylib: phy_mii_ioctl() fixes

Make the SIOCGMIIPHY case fall through properly (it is supposed
to not only return the ID of the default PHY but also to read from
that PHY), and make phy_mii_ioctl() return the same error code as
generic_mii_ioctl() in case of an unsupported operation.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 45cc2914d3475d1f12db6749890158087f7ab6ca..0433fcd009438b65aee19afed77eed75f0bd9e3c 100644 (file)
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -366,7 +366,8 @@ int phy_mii_ioctl(struct phy_device *phydev,
        switch (cmd) {
        case SIOCGMIIPHY:
                mii_data->phy_id = phydev->addr;
-               break;
+               /* fall through */
+
        case SIOCGMIIREG:
                mii_data->val_out = phy_read(phydev, mii_data->reg_num);
                break;
@@ -413,7 +414,7 @@ int phy_mii_ioctl(struct phy_device *phydev,
                break;
 
        default:
-               return -ENOTTY;
+               return -EOPNOTSUPP;
        }
 
        return 0;