Merge tag 'renesas-boards-cleanups2-for-v3.19' of git://git.kernel.org/pub/scm/linux...

[firefly-linux-kernel-4.4.55.git] / net / core / ethtool.c

diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 1600aa24d36bcaa653dff0b0c34f4d700eb4fbb9..06dfb293e5aafa10ab2754bfb80d29ad29f2db95 100644 (file)
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1036,7 +1036,8 @@ static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr)
 {
        const struct ethtool_ops *ops = dev->ethtool_ops;
 
-       if (!ops->get_eeprom || !ops->get_eeprom_len)
+       if (!ops->get_eeprom || !ops->get_eeprom_len ||
+           !ops->get_eeprom_len(dev))
                return -EOPNOTSUPP;
 
        return ethtool_get_any_eeprom(dev, useraddr, ops->get_eeprom,
@@ -1052,7 +1053,8 @@ static int ethtool_set_eeprom(struct net_device *dev, void __user *useraddr)
        u8 *data;
        int ret = 0;
 
-       if (!ops->set_eeprom || !ops->get_eeprom_len)
+       if (!ops->set_eeprom || !ops->get_eeprom_len ||
+           !ops->get_eeprom_len(dev))
                return -EOPNOTSUPP;
 
        if (copy_from_user(&eeprom, useraddr, sizeof(eeprom)))