Merge Revision revid:sunny.bains@oracle.com-20100511030324-lh8ljn1oau4wdrpi from MySQL InnoDB
Original revid:sunny.bains@oracle.com-20100511030324-lh8ljn1oau4wdrpi
Original Authors: Sunny Bains <Sunny.Bains@Oracle.Com>
Original commit message:
Fix for bug#53541. We need to check whether the slot has been freed or not
before trying to access the transaction instance.
rb://336