From 799e69d38053e344267360a583676eafe2ed8648 Mon Sep 17 00:00:00 2001 From: Sebastian Hesselbarth Date: Wed, 29 May 2013 09:32:43 +0000 Subject: [PATCH 20/29] net: mv643xx_eth: use phy_disconnect instead of phy_detach Using a separated mdio bus driver with mvmdio, phy_detach on network device removal will not stop the phy and finally lead to NULL pointer dereference in mvmdio due to non-existent network device. Use phy_disconnect instead to properly stop phy device from accessing network device prior removal of the network device. Signed-off-by: Sebastian Hesselbarth Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mv643xx_eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/ethernet/marvell/mv643xx_eth.c +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -2803,7 +2803,7 @@ static int mv643xx_eth_remove(struct pla unregister_netdev(mp->dev); if (mp->phy != NULL) - phy_detach(mp->phy); + phy_disconnect(mp->phy); cancel_work_sync(&mp->tx_timeout_task); if (!IS_ERR(mp->clk))