| Message ID | 1422777702-12584-2-git-send-email-anand.jain@oracle.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 92db3f6..68dcd17 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -439,6 +439,8 @@ static struct attribute *btrfs_attrs[] = { static void btrfs_release_super_kobj(struct kobject *kobj) { struct btrfs_fs_info *fs_info = to_fs_info(kobj); + + memset(&fs_info->super_kobj, 0, sizeof(struct kobject)); complete(&fs_info->kobj_unregister); }
The following test case fails indicating that, thread tried to init an initialized object. kernel: [232104.016513] kobject (ffff880006c1c980): tried to init an initialized object, something is seriously wrong. btrfs_sysfs_remove_one() self test code: open_tree() { :: ret = btrfs_sysfs_add_one(fs_info); if (ret) { pr_err("BTRFS: failed to init sysfs interface: %d\n", ret); goto fail_block_groups; } + 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; + } cleaning up the unregistered kobject fixes this. Signed-off-by: Anand Jain <anand.jain@oracle.com> --- fs/btrfs/sysfs.c | 2 ++ 1 file changed, 2 insertions(+)