1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 602816d70281..c5675df5fc6f 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -985,8 +985,10 @@ void phy_state_machine(struct work_struct *work)
          * state machine would be pointless and possibly error prone when
          * called from phy_disconnect() synchronously.
          */
+        mutex_lock(&phydev->lock);
         if (phy_polling_mode(phydev) && phy_is_started(phydev))
                 phy_queue_state_machine(phydev, PHY_STATE_TIME);
+        mutex_unlock(&phydev->lock);
 }
 
 /**