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path: root/drivers/s390/block/dasd_diag.c
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Diffstat (limited to 'drivers/s390/block/dasd_diag.c')
-rw-r--r--drivers/s390/block/dasd_diag.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index d91df38ee4f..85fcb437105 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -333,7 +333,8 @@ dasd_diag_check_device(struct dasd_device *device)
if (IS_ERR(block)) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"could not allocate dasd block structure");
- kfree(device->private);
+ device->private = NULL;
+ kfree(private);
return PTR_ERR(block);
}
device->block = block;
@@ -348,7 +349,8 @@ dasd_diag_check_device(struct dasd_device *device)
if (rc) {
DEV_MESSAGE(KERN_WARNING, device, "failed to retrieve device "
"information (rc=%d)", rc);
- return -ENOTSUPP;
+ rc = -EOPNOTSUPP;
+ goto out;
}
/* Figure out position of label block */
@@ -362,7 +364,8 @@ dasd_diag_check_device(struct dasd_device *device)
default:
DEV_MESSAGE(KERN_WARNING, device, "unsupported device class "
"(class=%d)", private->rdc_data.vdev_class);
- return -ENOTSUPP;
+ rc = -EOPNOTSUPP;
+ goto out;
}
DBF_DEV_EVENT(DBF_INFO, device,
@@ -379,7 +382,8 @@ dasd_diag_check_device(struct dasd_device *device)
if (label == NULL) {
DEV_MESSAGE(KERN_WARNING, device, "%s",
"No memory to allocate initialization request");
- return -ENOMEM;
+ rc = -ENOMEM;
+ goto out;
}
rc = 0;
end_block = 0;
@@ -403,7 +407,7 @@ dasd_diag_check_device(struct dasd_device *device)
DEV_MESSAGE(KERN_WARNING, device, "%s",
"DIAG call failed");
rc = -EOPNOTSUPP;
- goto out;
+ goto out_label;
}
mdsk_term_io(device);
if (rc == 0)
@@ -413,7 +417,7 @@ dasd_diag_check_device(struct dasd_device *device)
DEV_MESSAGE(KERN_WARNING, device, "device access failed "
"(rc=%d)", rc);
rc = -EIO;
- goto out;
+ goto out_label;
}
/* check for label block */
if (memcmp(label->label_id, DASD_DIAG_CMS1,
@@ -439,8 +443,15 @@ dasd_diag_check_device(struct dasd_device *device)
(unsigned long) (block->blocks <<
block->s2b_shift) >> 1);
}
-out:
+out_label:
free_page((long) label);
+out:
+ if (rc) {
+ device->block = NULL;
+ dasd_free_block(block);
+ device->private = NULL;
+ kfree(private);
+ }
return rc;
}