Commit b301ea8c authored Sep 09, 2008 by Peter Oberparleiter Committed by Martin Schwidefsky Sep 09, 2008

[S390] cio: allow offline processing for disconnected devices

When disconnected ccw devices are removed, the device has to be set
offline, otherwise there will be side effects including a reference
count imbalance. This patch modifies ccw_device_offline to work for
devices in disconnecte/not operational state. ccw_device_offline is
called by cio for devices which are online during device removal.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent c91ebe49

drivers/s390/cio/device_fsm.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -658,6 +658,13 @@ ccw_device_offline(struct ccw_device *cdev)
		{
		struct subchannel *sch;

		/* Allow ccw_device_offline while disconnected. */
		if (cdev->private->state == DEV_STATE_DISCONNECTED \|\|
		cdev->private->state == DEV_STATE_NOT_OPER) {
		cdev->private->flags.donotify = 0;
		ccw_device_done(cdev, DEV_STATE_NOT_OPER);
		return 0;
		}
		if (ccw_device_is_orphan(cdev)) {
		ccw_device_done(cdev, DEV_STATE_OFFLINE);
		return 0;