From 93ff458563b03db3142c1c3939000a4100aeb37f Mon Sep 17 00:00:00 2001 From: Thomas Tai Date: Mon, 8 May 2017 13:37:40 -0700 Subject: [PATCH] ldmvsw: unregistering netdev before disable hardware When running LDom binding/unbinding test, kernel may panic in ldmvsw_open(). It is more likely that because we're removing the ldc connection before unregistering the netdev in vsw_port_remove(), we set up a window of time where one process could be removing the device while another trying to UP the device. This also sometimes causes vio handshake error due to opening a device without closing it completely. We should unregister the netdev before we disable the "hardware". orabug: 25980913, 25925306 Signed-off-by: Thomas Tai Signed-off-by: Shannon Nelson Signed-off-by: Allen Pais --- drivers/net/ethernet/sun/ldmvsw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/sun/ldmvsw.c b/drivers/net/ethernet/sun/ldmvsw.c index 5f1047403fe5..080604c5ef3d 100644 --- a/drivers/net/ethernet/sun/ldmvsw.c +++ b/drivers/net/ethernet/sun/ldmvsw.c @@ -420,6 +420,7 @@ static int vsw_port_remove(struct vio_dev *vdev) del_timer_sync(&port->vio.timer); napi_disable(&port->napi); + unregister_netdev(port->dev); list_del_rcu(&port->list); @@ -434,7 +435,6 @@ static int vsw_port_remove(struct vio_dev *vdev) dev_set_drvdata(&vdev->dev, NULL); - unregister_netdev(port->dev); free_netdev(port->dev); } -- 2.50.1