diff options
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 72e0a2887cb7..2f2873b9a041 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -929,6 +929,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) { struct module *owner = NULL; struct gendisk *disk; + struct hd_struct *part = NULL; int ret; int partno; int perm = 0; @@ -978,7 +979,6 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) if (bdev->bd_invalidated) rescan_partitions(disk, bdev); } else { - struct hd_struct *p; struct block_device *whole; whole = bdget_disk(disk, 0); ret = -ENOMEM; @@ -989,16 +989,16 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) if (ret) goto out_first; bdev->bd_contains = whole; - p = disk->part[partno - 1]; + part = disk_get_part(disk, partno); bdev->bd_inode->i_data.backing_dev_info = whole->bd_inode->i_data.backing_dev_info; - if (!(disk->flags & GENHD_FL_UP) || !p || !p->nr_sects) { + if (!(disk->flags & GENHD_FL_UP) || + !part || !part->nr_sects) { ret = -ENXIO; goto out_first; } - kobject_get(&p->dev.kobj); - bdev->bd_part = p; - bd_set_size(bdev, (loff_t) p->nr_sects << 9); + bdev->bd_part = part; + bd_set_size(bdev, (loff_t)part->nr_sects << 9); } } else { put_disk(disk); @@ -1027,6 +1027,7 @@ out_first: __blkdev_put(bdev->bd_contains, 1); bdev->bd_contains = NULL; put_disk(disk); + disk_put_part(part); module_put(owner); out: mutex_unlock(&bdev->bd_mutex); @@ -1119,7 +1120,7 @@ static int __blkdev_put(struct block_device *bdev, int for_part) module_put(owner); if (bdev->bd_contains != bdev) { - kobject_put(&bdev->bd_part->dev.kobj); + disk_put_part(bdev->bd_part); bdev->bd_part = NULL; } bdev->bd_disk = NULL; |