diff options
| author | Frank Blaschka <frank.blaschka@de.ibm.com> | 2009-11-12 21:46:28 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-13 20:46:59 -0800 |
| commit | 1e1815be87e45ce512f998ab35e9554c25031f4d (patch) | |
| tree | cdea8e94953577889386289d10b750426aade29c /drivers/s390/net/ctcm_main.c | |
| parent | b7c2aecc0747f5c86a1959bce6a7ce8170a556b0 (diff) | |
| download | kernel_samsung_smdk4412-1e1815be87e45ce512f998ab35e9554c25031f4d.zip kernel_samsung_smdk4412-1e1815be87e45ce512f998ab35e9554c25031f4d.tar.gz kernel_samsung_smdk4412-1e1815be87e45ce512f998ab35e9554c25031f4d.tar.bz2 | |
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 <frank.blaschka@de.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/s390/net/ctcm_main.c')
| -rw-r--r-- | drivers/s390/net/ctcm_main.c | 5 |
1 files changed, 5 insertions, 0 deletions
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; |