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path: root/drivers/s390/block/dasd_fba.c
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Diffstat (limited to 'drivers/s390/block/dasd_fba.c')
-rw-r--r--drivers/s390/block/dasd_fba.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 8912358daa2..597c6ffdb9f 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -122,20 +122,20 @@ dasd_fba_check_characteristics(struct dasd_device *device)
struct dasd_block *block;
struct dasd_fba_private *private;
struct ccw_device *cdev = device->cdev;
- void *rdc_data;
int rc;
private = (struct dasd_fba_private *) device->private;
- if (private == NULL) {
- private = kzalloc(sizeof(struct dasd_fba_private),
- GFP_KERNEL | GFP_DMA);
- if (private == NULL) {
+ if (!private) {
+ private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);
+ if (!private) {
dev_warn(&device->cdev->dev,
"Allocating memory for private DASD "
"data failed\n");
return -ENOMEM;
}
device->private = (void *) private;
+ } else {
+ memset(private, 0, sizeof(*private));
}
block = dasd_alloc_block();
if (IS_ERR(block)) {
@@ -150,8 +150,8 @@ dasd_fba_check_characteristics(struct dasd_device *device)
block->base = device;
/* Read Device Characteristics */
- rdc_data = (void *) &(private->rdc_data);
- rc = dasd_generic_read_dev_chars(device, "FBA ", &rdc_data, 32);
+ rc = dasd_generic_read_dev_chars(device, "FBA ", &private->rdc_data,
+ 32);
if (rc) {
DBF_EVENT(DBF_WARNING, "Read device characteristics returned "
"error %d for device: %s",
@@ -604,8 +604,14 @@ static struct dasd_discipline dasd_fba_discipline = {
static int __init
dasd_fba_init(void)
{
+ int ret;
+
ASCEBC(dasd_fba_discipline.ebcname, 4);
- return ccw_driver_register(&dasd_fba_driver);
+ ret = ccw_driver_register(&dasd_fba_driver);
+ if (!ret)
+ wait_for_device_probe();
+
+ return ret;
}
static void __exit