1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 6e9f619c491f..963630c65ca9 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -49,13 +49,13 @@ int mdiobus_register(struct mii_bus *bus)
         int i;
         int err = 0;
 
-        mutex_init(&bus->mdio_lock);
-
         if (NULL == bus || NULL == bus->name ||
                         NULL == bus->read ||
                         NULL == bus->write)
                 return -EINVAL;
 
+        mutex_init(&bus->mdio_lock);
+
         if (bus->reset)
                 bus->reset(bus);