chccwdev: Unexpected non-zero return code

[John George]

$ lsb_release -rd
Description: Ubuntu Yakkety Yak (development branch)
Release: 16.10

$ apt-cache policy s390-tools
s390-tools:
  Installed: 1.36.1-0ubuntu2
  Candidate: 1.36.1-0ubuntu2
  Version table:
 *** 1.36.1-0ubuntu2 500
        500 http://us.ports.ubuntu.com/ubuntu-ports yakkety/main s390x Packages
        100 /var/lib/dpkg/status

When benign options such as --help or --version are passed to chccwdev the expected output is printed but the return code is non-zero. This is inconsistent behaviour compared to other utilities shipped in the s390-tools package and a hindrance to dep8 autopkgtests tests. Please see LP bug 1616596 for further discussion as to why this can be an impact. The unexpected return code is shown here:

$ chccwdev -h
Usage: chccwdev [<options>] <devices>

<options>
  -a|--attribute <name>=<value>
  -e|--online
   Tries to set the given device online.
  -f|--forceonline
   Tries to force a device online if the device
   driver supports this.
   -d|--offline
    Tries to set the given device offline.
   -s|--safeoffline
    Tries to set the given device offline waiting for all outstanding I/O. May block forever.
  -v|--version
   Show tools and command version.

<devices>
  <bus ID>[-<busid>][,<busid>[-<busid>]] ...
ubuntu@s5lp1-gen03:~/src/s390-tools-1.36.1/debian/tests$ echo $?
1

[Dimitri John Ledkov (xnox)]

1.37.0-0ubuntu1 is good.

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2017-03-02 07:48 EDT-------
IBM Bugzilla -> Closed