traffic-control: Clean up tcmmd process on test failure

If the manual run-tcmmd-test fails because the user replies ‘no’ to any
of the questions, it doesn’t clean up its tcmmd process. This causes an
immediate failure of the test if it’s run again. Fix that by always
cleaning up tcmmd.

Differential Revision: https://phabricator.apertis.org/D427


Signed-off-by: Philip Withnall <philip.withnall@collabora.co.uk>

traffic-control/manual/run-tcmmd-test.sh

@@ -102,6 +102,7 @@ check_decent_speed() {
 check_tcmmd() {
   sudo $TCMMD -i $NET_INTERFACE &>/dev/null &
   TCMMD_PID=$!
+  ROOT_PROC_KILL_LIST+=($TCMMD_PID)
   sleep 0.5
   if ! sudo kill -s 0 $TCMMD_PID &> /dev/null ; then
     return 1