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sysfs: fix parent refcounting during rename and move

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Parent reference wasn't properly transferred during rename and move.
Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Tejun Heo 2007-06-14 03:45:17 +09:00 committed by Greg Kroah-Hartman
parent 42b37df6ab
commit 7f7cfffe60
1 changed files with 6 additions and 0 deletions
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6
fs/sysfs/dir.c
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@ -497,6 +497,9 @@ int sysfs_rename_dir(struct kobject * kobj, struct dentry *new_parent,
d_move(kobj->dentry, new_dentry);
list_del_init(&sd->s_sibling);
sysfs_get(parent_sd);
sysfs_put(sd->s_parent);
sd->s_parent = parent_sd;
list_add(&sd->s_sibling, &parent_sd->s_children);
error = 0;
@ -550,6 +553,9 @@ again:
/* Remove from old parent's list and insert into new parent's list. */
list_del_init(&sd->s_sibling);
sysfs_get(new_parent_sd);
sysfs_put(sd->s_parent);
sd->s_parent = new_parent_sd;
list_add(&sd->s_sibling, &new_parent_sd->s_children);
out: