Btrfs: sysfs: fix, kobject pointer clean up needed after kobject release
authorAnand Jain <Anand.Jain@oracle.com>
Fri, 20 Mar 2015 10:01:20 +0000 (18:01 +0800)
committerDavid Sterba <dsterba@suse.cz>
Wed, 27 May 2015 10:27:19 +0000 (12:27 +0200)
commit8345ea31dc6e1772726d1d0b8864dedac55038e0
treeb119c49cbd9ff49b4262bc7e490cae0eced223a4
parente7e1aa9c913da380fbf1977ac4fa98e464023605
Btrfs: sysfs: fix, kobject pointer clean up needed after kobject release

The sysfs clean up self test like in the below code fails, since
fs_info->device_dir_kobject still points to its stale kobject.
Reseting this pointer will help to fix this.

open_ctree()
{

ret = btrfs_sysfs_add_one(fs_info);
::
+       btrfs_sysfs_remove_one(fs_info);
+       ret = btrfs_sysfs_add_one(fs_info);
+       if (ret) {
+               pr_err("BTRFS: failed to init sysfs interface: %d\n", ret);
+               goto fail_block_groups;
+       }

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
fs/btrfs/sysfs.c