diff options
Diffstat (limited to 'drivers/s390/block/dasd.c')
| -rw-r--r-- | drivers/s390/block/dasd.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index e5b84db0aa0..3f62dd50bbb 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -470,7 +470,7 @@ static int dasd_decrease_state(struct dasd_device *device) */ static void dasd_change_state(struct dasd_device *device) { - int rc; + int rc; if (device->state == device->target) /* Already where we want to go today... */ @@ -479,8 +479,10 @@ static void dasd_change_state(struct dasd_device *device) rc = dasd_increase_state(device); else rc = dasd_decrease_state(device); - if (rc && rc != -EAGAIN) - device->target = device->state; + if (rc == -EAGAIN) + return; + if (rc) + device->target = device->state; if (device->state == device->target) { wake_up(&dasd_init_waitq); @@ -2133,9 +2135,9 @@ static int dasd_getgeo(struct block_device *bdev, struct hd_geometry *geo) struct dasd_device *base; block = bdev->bd_disk->private_data; - base = block->base; if (!block) return -ENODEV; + base = block->base; if (!base->discipline || !base->discipline->fill_geometry) @@ -2503,15 +2505,25 @@ 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); |