How to Setup Chroot SFTP in Linux

How to Setup Chroot SFTP in Linux, it's allow only SFTP, not SSH. I'm running commands as root account.
Step 1: To create group

groupadd sftpusers

Step 2: To create user

useradd -g sftpusers -d /home/huupv -s /sbin/nologin huupv
passwd huupv

Step 3: Setup sftp-server Subsystem in sshd_config 

vim /etc/ssh/sshd_config

The output as bellow

#Subsystem       sftp    /usr/libexec/openssh/sftp-server
Subsystem       sftp    internal-sftp

Step 4: Specify Chroot Directory for a Group

vim /etc/ssh/sshd_config

Adding line as following

Match Group sftpusers
        ChrootDirectory /sftp/%u
        ForceCommand internal-sftp

Step 5: To create sftp Home Directory

mkdir -p /sftp/huupv/home/huupv

Step 6: To setup Appropriate Permission

chown huupv:sftpusers /sftp/huupv/home/huupv
service sshd restart

Test chroot sftp
To connect from client ssh to server.

ssh huupv@172.16.235.143

The output as bellow

huupv@172.16.235.143's password:
This service allows sftp connections only.
Connection to 172.16.235.143 closed.

To connect from client sftp to server.

sftp huupv@172.16.235.143

The output as bellow

huupv@172.16.235.143's password:
Connected to 172.16.235.143.
sftp> pwd
Remote working directory: /home/huupv
sftp> ls
FT
sftp> ls /
/home/huupv
sftp> ls /root
Can't ls: "/root" not found
sftp>