debian: Don't fail ovs-controller restart if daemon not running.

Reported-by: Maxime Brun <m.brun@alphalink.fr>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>

AUTHORS

@@ -166,6 +166,7 @@ Krishna Miriyala        krishna@nicira.com
 Logan Rosen             logatronico@gmail.com
 Luca Falavigna          dktrkranz@debian.org
 Luiz Henrique Ozaki     luiz.ozaki@gmail.com
+Maxime Brun             m.brun@alphalink.fr
 Michael A. Collins      mike.a.collins@ark-net.org
 Michael Hu              mhu@nicira.com
 Michael Mao             mmao@nicira.com

debian/openvswitch-controller.init

@@ -242,9 +242,11 @@ case "$1" in
         ;;
   restart|force-reload)
         log_daemon_msg "Restarting $DESC" "$NAME"
-        stop_server
-        # Wait some sensible amount, some server need this
-        [ -n "$DODTIME" ] && sleep $DODTIME
+        if running; then
+            stop_server
+            # Wait some sensible amount, some server need this.
+            [ -n "$DODTIME" ] && sleep $DODTIME
+        fi
         start_server
         running
         log_end_msg $?