atl1e: checking the status of atl1e_write_phy_reg

[ Upstream commit ff07d48d7bc0974d4f96a85a4df14564fb09f1ef ]

atl1e_write_phy_reg() could fail. The fix issues an error message when
it fails.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
index 974713b..5e1f035 100644 (file)
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
@@ -478,7 +478,9 @@ static void atl1e_mdio_write(struct net_device *netdev, int phy_id,
 {
        struct atl1e_adapter *adapter = netdev_priv(netdev);
 
-       atl1e_write_phy_reg(&adapter->hw, reg_num & MDIO_REG_ADDR_MASK, val);
+       if (atl1e_write_phy_reg(&adapter->hw,
+                               reg_num & MDIO_REG_ADDR_MASK, val))
+               netdev_err(netdev, "write phy register failed\n");
 }
 
 static int atl1e_mii_ioctl(struct net_device *netdev,