netdev/phy: Use mdiobus_read() so that proper locks are taken.

Accesses to the mdio busses must be done with the mdio_lock to ensure
proper operation.  Conveniently we have the helper function
mdiobus_read() to do that for us.  Lets use it in get_phy_id() instead
of accessing the bus without the lock held.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index ff109fe5af6b..83a5a5afec67 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -213,7 +213,7 @@ int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id)
 
         /* Grab the bits from PHYIR1, and put them
          * in the upper half */
-        phy_reg = bus->read(bus, addr, MII_PHYSID1);
+        phy_reg = mdiobus_read(bus, addr, MII_PHYSID1);
 
         if (phy_reg < 0)
                 return -EIO;
@@ -221,7 +221,7 @@ int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id)
         *phy_id = (phy_reg & 0xffff) << 16;
 
         /* Grab the bits from PHYIR2, and put them in the lower half */
-        phy_reg = bus->read(bus, addr, MII_PHYSID2);
+        phy_reg = mdiobus_read(bus, addr, MII_PHYSID2);
 
         if (phy_reg < 0)
                 return -EIO;