if (IS_ERR(name))
return PTR_ERR(name);
- mutex_lock(&mqueue_mnt->mnt_root->d_inode->i_mutex);
+ mutex_lock_nested(&mqueue_mnt->mnt_root->d_inode->i_mutex,
+ I_MUTEX_PARENT);
dentry = lookup_one_len(name, mqueue_mnt->mnt_root, strlen(name));
if (IS_ERR(dentry)) {
err = PTR_ERR(dentry);