Code review comment for lp:~afrantzis/mir/fix-1513901-shutdown-crash-with-mesa-kms

PASSED: Continuous integration, rev:3093
http://jenkins.qa.ubuntu.com/job/mir-ci/5527/
Executed test runs:
    SUCCESS: http://jenkins.qa.ubuntu.com/job/mir-android-vivid-i386-build/4833
    SUCCESS: http://jenkins.qa.ubuntu.com/job/mir-clang-vivid-amd64-build/3740
    SUCCESS: http://jenkins.qa.ubuntu.com/job/mir-mediumtests-vivid-touch/4775
    FAILURE: http://jenkins.qa.ubuntu.com/job/mir-mediumtests-wily-touch/733/console
    SUCCESS: http://jenkins.qa.ubuntu.com/job/mir-wily-amd64-ci/1681
        deb: http://jenkins.qa.ubuntu.com/job/mir-wily-amd64-ci/1681/artifact/work/output/*zip*/output.zip
    None: http://jenkins.qa.ubuntu.com/job/mir-wily-i386-ci/733/console
    SUCCESS: http://jenkins.qa.ubuntu.com/job/mir-mediumtests-builder-vivid-armhf/4776
        deb: http://jenkins.qa.ubuntu.com/job/mir-mediumtests-builder-vivid-armhf/4776/artifact/work/output/*zip*/output.zip
    SUCCESS: http://jenkins.qa.ubuntu.com/job/mir-mediumtests-runner-touch/7376
    SUCCESS: http://s-jenkins.ubuntu-ci:8080/job/touch-flash-device/25013
    FAILURE: http://jenkins.qa.ubuntu.com/job/mir-mediumtests-builder-wily-armhf/734/console

Click here to trigger a rebuild:
http://s-jenkins.ubuntu-ci:8080/job/mir-ci/5527/rebuild