1 files changed, 19 insertions, 12 deletions

diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 87b4bfca080f..e46049261561 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -256,13 +256,12 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
 		old_lpm = 0;
 	if (sch->lpm != old_lpm)
 		__recover_lost_chpids(sch, old_lpm);
-	if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID) {
-		if (state == DEV_STATE_NOT_OPER) {
-			cdev->private->flags.recog_done = 1;
-			cdev->private->state = DEV_STATE_DISCONNECTED;
-			return;
-		}
-		/* Boxed devices don't need extra treatment. */
+	if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID &&
+	    (state == DEV_STATE_NOT_OPER || state == DEV_STATE_BOXED)) {
+		cdev->private->flags.recog_done = 1;
+		cdev->private->state = DEV_STATE_DISCONNECTED;
+		wake_up(&cdev->private->wait_q);
+		return;
 	}
 	notify = 0;
 	same_dev = 0; /* Keep the compiler quiet... */
@@ -274,7 +273,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
 			      sch->schid.ssid, sch->schid.sch_no);
 		break;
 	case DEV_STATE_OFFLINE:
-		if (cdev->private->state == DEV_STATE_DISCONNECTED_SENSE_ID) {
+		if (cdev->online) {
 			same_dev = ccw_device_handle_oper(cdev);
 			notify = 1;
 		}
@@ -307,12 +306,17 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
 			      " subchannel 0.%x.%04x\n",
 			      cdev->private->dev_id.devno,
 			      sch->schid.ssid, sch->schid.sch_no);
+		if (cdev->id.cu_type != 0) { /* device was recognized before */
+			cdev->private->flags.recog_done = 1;
+			cdev->private->state = DEV_STATE_BOXED;
+			wake_up(&cdev->private->wait_q);
+			return;
+		}
 		break;
 	}
 	cdev->private->state = state;
 	io_subchannel_recog_done(cdev);
-	if (state != DEV_STATE_NOT_OPER)
-		wake_up(&cdev->private->wait_q);
+	wake_up(&cdev->private->wait_q);
 }
 
 /*
@@ -390,10 +394,13 @@ ccw_device_done(struct ccw_device *cdev, int state)
 
 	cdev->private->state = state;
 
-
-	if (state == DEV_STATE_BOXED)
+	if (state == DEV_STATE_BOXED) {
 		CIO_MSG_EVENT(0, "Boxed device %04x on subchannel %04x\n",
 			      cdev->private->dev_id.devno, sch->schid.sch_no);
+		if (cdev->online && !ccw_device_notify(cdev, CIO_BOXED))
+			ccw_device_schedule_sch_unregister(cdev);
+		cdev->private->flags.donotify = 0;
+	}
 
 	if (cdev->private->flags.donotify) {
 		cdev->private->flags.donotify = 0;