python/samba/netcmd: Protect variable that can be None

In py3 None variable cannot be compared with '>' '<' etc operators

Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>

diff --git a/python/samba/netcmd/domain.py b/python/samba/netcmd/domain.py
index d50cf3f526c941b0d360618a6d5d7a7f76552eda..3b133645bea304f83f45ee12d79adf1e628702aa 100644 (file)
--- a/python/samba/netcmd/domain.py
+++ b/python/samba/netcmd/domain.py
@@ -1524,7 +1524,7 @@ class cmd_domain_passwordsettings_set(Command):
               ldb.FLAG_MOD_REPLACE, "lockOutObservationWindow")
             msgs.append("Duration to reset account lockout after changed!")
 
-        if max_pwd_age > 0 and min_pwd_age >= max_pwd_age:
+        if max_pwd_age and max_pwd_age > 0 and min_pwd_age >= max_pwd_age:
             raise CommandError("Maximum password age (%d) must be greater than minimum password age (%d)!" % (max_pwd_age, min_pwd_age))
 
         if len(m) == 0: