Fix a lock problem in generic phy code

Lock debugging finds a problem in phy.c and phy_device.c,
this patch fixes it. Tested on an AT91SAM9263-EK board,
kernel 2.6.23-rc4.
Signed-off-by: NHans J. Koch <hjk@linutronix.de>
Signed-off-by: NJeff Garzik <jeff@garzik.org>

drivers/net/phy/phy.c

@@ -755,7 +755,7 @@ void phy_stop(struct phy_device *phydev)
  */
 void phy_start(struct phy_device *phydev)
 {
-	spin_lock(&phydev->lock);
+	spin_lock_bh(&phydev->lock);
 
 	switch (phydev->state) {
 		case PHY_STARTING:
@@ -769,7 +769,7 @@ void phy_start(struct phy_device *phydev)
 		default:
 			break;
 	}
-	spin_unlock(&phydev->lock);
+	spin_unlock_bh(&phydev->lock);
 }
 EXPORT_SYMBOL(phy_stop);
 EXPORT_SYMBOL(phy_start);

drivers/net/phy/phy_device.c

@@ -644,7 +644,7 @@ static int phy_probe(struct device *dev)
 	if (!(phydrv->flags & PHY_HAS_INTERRUPT))
 		phydev->irq = PHY_POLL;
 
-	spin_lock(&phydev->lock);
+	spin_lock_bh(&phydev->lock);
 
 	/* Start out supporting everything. Eventually,
 	 * a controller will attach, and may modify one
@@ -658,7 +658,7 @@ static int phy_probe(struct device *dev)
 	if (phydev->drv->probe)
 		err = phydev->drv->probe(phydev);
 
-	spin_unlock(&phydev->lock);
+	spin_unlock_bh(&phydev->lock);
 
 	return err;