[S390] cio: Retry internal operations after vary off.

If I/O was running on a just varied off chpid, it will be terminated.
If this was a common I/O layer internal I/O, it needs to be retried.

Signed-off-by: Cornelia Huck <cornelia.huck@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 39c98f9..359b46c 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -948,6 +948,9 @@
 	cdev = dev->driver_data;
 	if (!cdev)
 		return;
+	/* Internal I/O will be retried by the interrupt handler. */
+	if (cdev->private->flags.intretry)
+		return;
 	cdev->private->state = DEV_STATE_CLEAR_VERIFY;
 	if (cdev->handler)
 		cdev->handler(cdev, cdev->private->intparm,