staging: mt7621-eth: Lock is never unlocked.

mtk_phy_link_adjust takes a spinlock and disables
interrupts, but never unlocks.
This can leave interrupts disabled on one CPU and
various things stop working.

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/mt7621-eth/mdio.c b/drivers/staging/mt7621-eth/mdio.c
index 9d713078ef901b4ed18c3b73fea2e8b679925386..c6db11aad9e4026e47b3b1940b68828ed740c83d 100644 (file)
--- a/drivers/staging/mt7621-eth/mdio.c
+++ b/drivers/staging/mt7621-eth/mdio.c
@@ -57,6 +57,7 @@ static void mtk_phy_link_adjust(struct net_device *dev)
                        }
                }
        }
+       spin_unlock_irqrestore(&eth->phy->lock, flags);
 }
 
 int mtk_connect_phy_node(struct mtk_eth *eth, struct mtk_mac *mac,