[S390] cio: subchannels in no-path state.

Subchannel may incorrectly remain in state no-path after channel paths
have reappeared. Currently the scan for subchannels which are using a
channel path ends at the first occurrence if a full link address was
provided by the channel subsystem. The scan needs to continue over
all subchannels.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/cio/chsc.c

@@ -378,6 +378,7 @@ __s390_process_res_acc(struct subchannel_id schid, void *data)
 
 	if (chp_mask == 0) {
 		spin_unlock_irq(&sch->lock);
+		put_device(&sch->dev);
 		return 0;
 	}
 	old_lpm = sch->lpm;
@@ -392,7 +393,7 @@ __s390_process_res_acc(struct subchannel_id schid, void *data)
 
 	spin_unlock_irq(&sch->lock);
 	put_device(&sch->dev);
-	return (res_data->fla_mask == 0xffff) ? -ENODEV : 0;
+	return 0;
 }