[Bug 1633513] [NEW] chccwdev: Unexpected non-zero return code

[John George]

Public bug reported:

$ 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 at s5lp1-gen03:~/src/s390-tools-1.36.1/debian/tests$ echo $?
1

** Affects: s390-tools (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: s390x

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https://bugs.launchpad.net/bugs/1633513

Title:
  chccwdev: Unexpected non-zero return code

Status in s390-tools package in Ubuntu:
  New

Bug description:
  $ 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 at s5lp1-gen03:~/src/s390-tools-1.36.1/debian/tests$ echo $?
  1

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