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[S390] dasd: Fix cleanup in dasd_{fba,diag}_check_characteristics(). 

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Cornelia Huck 2008-07-17 17:16:43 +02:00 committed by Heiko Carstens
parent 626f311737
commit 7337194f70
2 changed files with 24 additions and 8 deletions
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25
drivers/s390/block/dasd_diag.c
View File

@ -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 = -ENOTSUPP;
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 = -ENOTSUPP;
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;
}

7
drivers/s390/block/dasd_fba.c
View File

@ -139,7 +139,8 @@ dasd_fba_check_characteristics(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;
@ -152,6 +153,10 @@ dasd_fba_check_characteristics(struct dasd_device *device)
DEV_MESSAGE(KERN_WARNING, device,
"Read device characteristics returned error %d",
rc);
device->block = NULL;
dasd_free_block(block);
device->private = NULL;
kfree(private);
return rc;
}