traffic-control: Ignore failure to kill tcdemo processes

When cleaning up, ignore failure to kill tcdemo processes, caused by
them already exiting or being killed earlier on. This fixes all test
cases after the first one in the traffic-control-tcdemo unit test
running.

Bug: https://bugs.apertis.org/show_bug.cgi?id=328
Differential Revision: https://phabricator.apertis.org/D430


Signed-off-by: Philip Withnall <philip.withnall@collabora.co.uk>
Reviewed-by: Sjoerd Simons <sjoerd.simons@collabora.com>

traffic-control/manual/init-setup.sh

@@ -20,15 +20,15 @@ _kill_procs() {
     for proc in "${ROOT_PROC_KILL_LIST[@]}"; do
         if ps -p $proc >/dev/null; then
             # Let sudo a chance to kill its child
-            sudo kill -SIGINT $proc
+            sudo kill -SIGINT $proc || true
             sleep 0.2
-            sudo kill -SIGKILL $proc
+            sudo kill -SIGKILL $proc || true
         fi
     done
     for proc in "${PROC_KILL_LIST[@]}"; do
         if ps -p $proc >/dev/null; then
             # Only killing wget here. No need for sudo.
-            kill $proc
+            kill $proc || true
         fi
     done
 }