From 1e1815be87e45ce512f998ab35e9554c25031f4d Mon Sep 17 00:00:00 2001 From: Frank Blaschka Date: Thu, 12 Nov 2009 21:46:28 +0000 Subject: ctcm: suspend has to wait for outstanding I/O State transition to DEV_STATE_STOPPED indicates all outstanding I/O has finished. Add wait queue to wait for this state. Signed-off-by: Frank Blaschka Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- drivers/s390/net/ctcm_main.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/s390/net/ctcm_main.c') diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index db054ed..ecac3b2 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -1720,6 +1720,11 @@ static int ctcm_pm_suspend(struct ccwgroup_device *gdev) return 0; netif_device_detach(priv->channel[READ]->netdev); ctcm_close(priv->channel[READ]->netdev); + if (!wait_event_timeout(priv->fsm->wait_q, + fsm_getstate(priv->fsm) == DEV_STATE_STOPPED, CTCM_TIME_5_SEC)) { + netif_device_attach(priv->channel[READ]->netdev); + return -EBUSY; + } ccw_device_set_offline(gdev->cdev[1]); ccw_device_set_offline(gdev->cdev[0]); return 0; -- cgit v1.1