package/bluez5_utils: tidy up the init script

* use long-form options
* consistently use start-stop-daemon with --exec
* wait for process to be gone and delete PID file on stop

Signed-off-by: Fiona Klute (WIWA) <fiona.klute@gmx.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/bluez5_utils/S40bluetoothd

@@ -11,7 +11,8 @@ BLUETOOTHD_ARGS="-n"
 start() {
 	printf 'Starting %s: ' "$DAEMON"
 	# shellcheck disable=SC2086 # we need the word splitting
-	start-stop-daemon -S -q -m -b -p "$PIDFILE" -x "/usr/libexec/bluetooth/$DAEMON" \
+	start-stop-daemon --start --background --make-pidfile \
+		--pidfile "$PIDFILE" --exec "/usr/libexec/bluetooth/$DAEMON" \
 		-- $BLUETOOTHD_ARGS
 	status=$?
 	if [ "$status" -eq 0 ]; then
@@ -24,25 +25,32 @@ start() {
 
 stop() {
 	printf 'Stopping %s: ' "$DAEMON"
-	start-stop-daemon -K -q -p "$PIDFILE"
+	start-stop-daemon --stop --pidfile "$PIDFILE" \
+		--exec "/usr/libexec/bluetooth/$DAEMON"
 	status=$?
 	if [ "$status" -eq 0 ]; then
 		echo "OK"
 	else
 		echo "FAIL"
+		return "$status"
 	fi
+	while start-stop-daemon --stop --test --quiet --pidfile "$PIDFILE" \
+		--exec "/usr/libexec/bluetooth/$DAEMON"; do
+		sleep 0.1
+	done
+	rm -f "$PIDFILE"
 	return "$status"
 }
 
 restart() {
 	stop
-	sleep 1
 	start
 }
 
 reload() {
 	printf 'Reloading %s: ' "$DAEMON"
-	start-stop-daemon -K -s HUP -q -p "$PIDFILE"
+	start-stop-daemon --stop --signal HUP -q --pidfile "$PIDFILE" \
+		--exec "/usr/libexec/bluetooth/$DAEMON"
 	status=$?
 	if [ "$status" -eq 0 ]; then
 		echo "OK"