diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 74fe73b5738a..6e2fd445688c 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1491,6 +1491,8 @@ static void dasd_eckd_reset_path(struct dasd_device *device, __u8 pm) struct dasd_eckd_private *private = device->private; unsigned long flags; + if (!private) + return; if (!private->fcx_max_data) private->fcx_max_data = get_fcx_max_data(device); spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); @@ -1646,6 +1648,9 @@ static int dasd_eckd_is_ese(struct dasd_device *device) { struct dasd_eckd_private *private = device->private; + if (!private) + return 0; + return private->vsq.vol_info.ese; } @@ -1653,6 +1658,9 @@ static int dasd_eckd_ext_pool_id(struct dasd_device *device) { struct dasd_eckd_private *private = device->private; + if (!private) + return 0; + return private->vsq.extent_pool_id; } @@ -1666,6 +1674,9 @@ static int dasd_eckd_space_configured(struct dasd_device *device) struct dasd_eckd_private *private = device->private; int rc; + if (!private) + return 0; + rc = dasd_eckd_read_vol_info(device); return rc ? : private->vsq.space_configured; @@ -1680,6 +1691,9 @@ static int dasd_eckd_space_allocated(struct dasd_device *device) struct dasd_eckd_private *private = device->private; int rc; + if (!private) + return 0; + rc = dasd_eckd_read_vol_info(device); return rc ? : private->vsq.space_allocated; @@ -1689,6 +1703,9 @@ static int dasd_eckd_logical_capacity(struct dasd_device *device) { struct dasd_eckd_private *private = device->private; + if (!private) + return 0; + return private->vsq.logical_capacity; } @@ -1831,7 +1848,11 @@ static int dasd_eckd_read_ext_pool_info(struct dasd_device *device) static int dasd_eckd_ext_size(struct dasd_device *device) { struct dasd_eckd_private *private = device->private; - struct dasd_ext_pool_sum eps = private->eps; + struct dasd_ext_pool_sum eps; + + if (!private) + return 0; + eps = private->eps; if (!eps.flags.extent_size_valid) return 0; @@ -1847,6 +1868,9 @@ static int dasd_eckd_ext_pool_warn_thrshld(struct dasd_device *device) { struct dasd_eckd_private *private = device->private; + if (!private) + return 0; + return private->eps.warn_thrshld; } @@ -1854,6 +1878,9 @@ static int dasd_eckd_ext_pool_cap_at_warnlevel(struct dasd_device *device) { struct dasd_eckd_private *private = device->private; + if (!private) + return 0; + return private->eps.flags.capacity_at_warnlevel; } @@ -1864,6 +1891,9 @@ static int dasd_eckd_ext_pool_oos(struct dasd_device *device) { struct dasd_eckd_private *private = device->private; + if (!private) + return 0; + return private->eps.flags.pool_oos; } @@ -5935,8 +5965,11 @@ static int dasd_eckd_query_host_access(struct dasd_device *device, struct ccw1 *ccw; int rc; + if (!private) + return -ENODEV; + /* not available for HYPER PAV alias devices */ - if (!device->block && private->lcu->pav == HYPER_PAV) + if (!device->block && private->lcu && private->lcu->pav == HYPER_PAV) return -EOPNOTSUPP; /* may not be supported by the storage server */ @@ -6801,6 +6834,9 @@ static int dasd_eckd_hpf_enabled(struct dasd_device *device) { struct dasd_eckd_private *private = device->private; + if (!private) + return 0; + return private->fcx_max_data ? 1 : 0; }