phy: net: Check that input interface type is gmii

There can't be any other interface as input. Only gmii is allowed.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/net/phy/xilinx_gmii2rgmii.c b/drivers/net/phy/xilinx_gmii2rgmii.c
index 08f9412ccd9a75113bddc00d206e004d7b970803..dad2bf7d84071b19354e334e7e1f2c1a96ea227d 100644 (file)
--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -62,6 +62,11 @@ static int xilinxgmiitorgmii_probe(struct phy_device *phydev)
 
        debug("%s\n", __func__);
 
+       if (phydev->interface != PHY_INTERFACE_MODE_GMII) {
+               printf("Incorrect interface type\n");
+               return -EINVAL;
+       }
+
        /*
         * Read the phy address again as the one we read in ethernet driver
         * was overwritten for the purpose of storing the ofnode