From: Peter Zijlstra Don't leak a ->bd_part_count when the partition open fails with -ENXIO. Signed-off-by: Peter Zijlstra Cc: Neil Brown Signed-off-by: Andrew Morton --- fs/block_dev.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletion(-) diff -puN fs/block_dev.c~bdev-fix-bd_part_count-leak fs/block_dev.c --- a/fs/block_dev.c~bdev-fix-bd_part_count-leak +++ a/fs/block_dev.c @@ -902,6 +902,7 @@ EXPORT_SYMBOL(bd_set_size); static int __blkdev_get(struct block_device *bdev, mode_t mode, unsigned flags, int for_part); +static int __blkdev_put(struct block_device *bdev, int for_part); static int do_open(struct block_device *bdev, struct file *file, int for_part) { @@ -987,7 +988,7 @@ out_first: bdev->bd_disk = NULL; bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info; if (bdev != bdev->bd_contains) - blkdev_put(bdev->bd_contains); + __blkdev_put(bdev->bd_contains, 1); bdev->bd_contains = NULL; put_disk(disk); module_put(owner); _