[FIX]: Fixed problem of zero division in action_consume of move

bzr revid: rpa@tinyerp.com-20101221071653-ksfh0unorhuuk3e7

addons/stock/stock.py

@@ -2272,6 +2272,8 @@ class stock_move(osv.osv):
         res = []
         for move in self.browse(cr, uid, ids, context=context):
             move_qty = move.product_qty
+            if move_qty <= 0:
+                raise osv.except_osv(_('Error!'), _('Can not consume a move with negative or zero quantity !'))
             quantity_rest = move.product_qty
 
             quantity_rest -= quantity