[PATCH] net:phy: Add a return value check on bus write

[Aditya Pakki]

xgmiitorgmii_read_status() could fail when writing to the bus via
mdiobus_write(). The fix adds a check and returns an error in case
of failure.

Signed-off-by: Aditya Pakki <pakki...@umn.edu>
---
 drivers/net/phy/xilinx_gmii2rgmii.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/xilinx_gmii2rgmii.c 
b/drivers/net/phy/xilinx_gmii2rgmii.c
index 74a8782313cf..926879d43373 100644
--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -58,7 +58,9 @@ static int xgmiitorgmii_read_status(struct phy_device *phydev)
        else
                val |= BMCR_SPEED10;
 
-       mdiobus_write(bus, addr, XILINX_GMII2RGMII_REG, val);
+       err = mdiobus_write(bus, addr, XILINX_GMII2RGMII_REG, val);
+       if (err)
+               return err;
 
        return 0;
 }
-- 
2.17.1