diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 8a91d79383dd01cc12b9f7bc01e0bcb6334143f2..30e6d4b8d5644191d404d5547bba0a8248b01f40 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -634,9 +634,9 @@ static int mv643xx_eth_poll(struct napi_struct *napi, int budget)
 				txq_reclaim(mp->txq + i, 0);
 
 		if (netif_carrier_ok(mp->dev)) {
-			spin_lock(&mp->lock);
+			spin_lock_irq(&mp->lock);
 			__txq_maybe_wake(mp->txq + mp->txq_primary);
-			spin_unlock(&mp->lock);
+			spin_unlock_irq(&mp->lock);
 		}
 	}
 #endif