[S390] dasd_pm: fix stop flag handling

The stop flags are handled in the generic restore function so the
stop flag is removed also for FBA and DIAG devices.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index e5b84db0aa03..99e71536213a 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2503,15 +2503,25 @@ int dasd_generic_restore_device(struct ccw_device *cdev)
         if (IS_ERR(device))
                 return PTR_ERR(device);
 
+        /* allow new IO again */
+        device->stopped &= ~DASD_STOPPED_PM;
+        device->stopped &= ~DASD_UNRESUMED_PM;
+
         dasd_schedule_device_bh(device);
         if (device->block)
                 dasd_schedule_block_bh(device->block);
 
         if (device->discipline->restore)
                 rc = device->discipline->restore(device);
+        if (rc)
+                /*
+                 * if the resume failed for the DASD we put it in
+                 * an UNRESUMED stop state
+                 */
+                device->stopped |= DASD_UNRESUMED_PM;
 
         dasd_put_device(device);
-        return rc;
+        return 0;
 }
 EXPORT_SYMBOL_GPL(dasd_generic_restore_device);