diff options
Diffstat (limited to 'fs/configfs/dir.c')
| -rw-r--r-- | fs/configfs/dir.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c index 39843fa7e11b..5e7932d668ab 100644 --- a/fs/configfs/dir.c +++ b/fs/configfs/dir.c @@ -1690,9 +1690,11 @@ static loff_t configfs_dir_lseek(struct file *file, loff_t offset, int whence) switch (whence) { case 1: offset += file->f_pos; + /* fall through */ case 0: if (offset >= 0) break; + /* fall through */ default: return -EINVAL; } @@ -1755,12 +1757,19 @@ int configfs_register_group(struct config_group *parent_group, inode_lock_nested(d_inode(parent), I_MUTEX_PARENT); ret = create_default_group(parent_group, group); - if (!ret) { - spin_lock(&configfs_dirent_lock); - configfs_dir_set_ready(group->cg_item.ci_dentry->d_fsdata); - spin_unlock(&configfs_dirent_lock); - } + if (ret) + goto err_out; + + spin_lock(&configfs_dirent_lock); + configfs_dir_set_ready(group->cg_item.ci_dentry->d_fsdata); + spin_unlock(&configfs_dirent_lock); + inode_unlock(d_inode(parent)); + return 0; +err_out: inode_unlock(d_inode(parent)); + mutex_lock(&subsys->su_mutex); + unlink_group(group); + mutex_unlock(&subsys->su_mutex); return ret; } EXPORT_SYMBOL(configfs_register_group); |