diff options
| author | Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> | 2021-12-15 19:38:43 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2021-12-15 17:07:34 +0100 |
| commit | 4989d4a0aed3fb30f5b48787a689d7090de6f86d (patch) | |
| tree | c8340203bf9bf3d13b96c010365fddff141944a8 /fs | |
| parent | 212a58fda9b9077e0efc20200a4feb76afacfd95 (diff) | |
btrfs: fix missing blkdev_put() call in btrfs_scan_one_device()
The function btrfs_scan_one_device() calls blkdev_get_by_path() and
blkdev_put() to get and release its target block device. However, when
btrfs_sb_log_location_bdev() fails, blkdev_put() is not called and the
block device is left without clean up. This triggered failure of fstests
generic/085. Fix the failure path of btrfs_sb_log_location_bdev() to
call blkdev_put().
Fixes: 12659251ca5df ("btrfs: implement log-structured superblock for ZONED mode")
CC: stable@vger.kernel.org # 5.15+
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/volumes.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index cc80f2a97a0b..b4da58fd0e1a 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1370,8 +1370,10 @@ struct btrfs_device *btrfs_scan_one_device(const char *path, fmode_t flags, bytenr_orig = btrfs_sb_offset(0); ret = btrfs_sb_log_location_bdev(bdev, 0, READ, &bytenr); - if (ret) - return ERR_PTR(ret); + if (ret) { + device = ERR_PTR(ret); + goto error_bdev_put; + } disk_super = btrfs_read_disk_super(bdev, bytenr, bytenr_orig); if (IS_ERR(disk_super)) { |