[S390] cio: allow setting not-operational devices offline
Accept a request for setting a not-operational device offline.
This way, users can remove devices from Linux which would otherwise
remain unusable until reboot.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 6a9ac85..9af864f 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -529,11 +529,10 @@
int force, ret;
unsigned long i;
- if ((cdev->private->state != DEV_STATE_OFFLINE &&
- cdev->private->state != DEV_STATE_ONLINE &&
- cdev->private->state != DEV_STATE_BOXED &&
- cdev->private->state != DEV_STATE_DISCONNECTED) ||
- atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
+ if (!dev_fsm_final_state(cdev) &&
+ cdev->private->state != DEV_STATE_DISCONNECTED)
+ return -EAGAIN;
+ if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
return -EAGAIN;
if (cdev->drv && !try_module_get(cdev->drv->owner)) {