systemctl: fix double unref of a dbus message

diff --git a/src/systemctl.c b/src/systemctl.c
index 99ada38..a82cce4 100644 (file)
--- a/src/systemctl.c
+++ b/src/systemctl.c
@@ -1565,6 +1565,7 @@ static int check_unit(DBusConnection *bus, char **args, unsigned n) {
 
                         dbus_error_free(&error);
                         dbus_message_unref(m);
+                        m = NULL;
                         continue;
                 }