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bsg: add cheasy error checks for sysfs stuff

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Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2007-01-23 16:30:17 +01:00
parent 5309cb38de
commit 264a047218
1 changed files with 10 additions and 1 deletions
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11
block/bsg.c
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@ -983,10 +983,19 @@ int bsg_register_disk(struct gendisk *disk)
bsg_device_nr++;
bcd->disk = disk;
bcd->class_dev = class_device_create(bsg_class, NULL, dev, bcd->dev, "%s", disk->disk_name);
if (!bcd->class_dev)
goto err;
list_add_tail(&bcd->list, &bsg_class_list);
sysfs_create_link(&q->kobj, &bcd->class_dev->kobj, "bsg");
if (sysfs_create_link(&q->kobj, &bcd->class_dev->kobj, "bsg"))
goto err;
mutex_unlock(&bsg_mutex);
return 0;
err:
bsg_device_nr--;
if (bcd->class_dev)
class_device_destroy(bsg_class, MKDEV(BSG_MAJOR, bcd->minor));
mutex_unlock(&bsg_mutex);
return -ENOMEM;
}
static int __init bsg_init(void)