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path: root/drivers/s390/cio/device.c
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Diffstat (limited to 'drivers/s390/cio/device.c')
-rw-r--r--drivers/s390/cio/device.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index e8e1a108cdf8..fc916f5d7314 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1521,11 +1521,14 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
goto out;
break;
case IO_SCH_UNREG_ATTACH:
+ spin_lock_irqsave(sch->lock, flags);
if (cdev->private->flags.resuming) {
/* Device will be handled later. */
rc = 0;
- goto out;
+ goto out_unlock;
}
+ sch_set_cdev(sch, NULL);
+ spin_unlock_irqrestore(sch->lock, flags);
/* Unregister ccw device. */
ccw_device_unregister(cdev);
break;