tree 951eb0c3567cad2bccf7dc3804bbdee0c462f291
parent 93f8fecbe72bc3c121f3605dd198ff39ef358522
author Albert Lee <albertcc@tw.ibm.com> 1196840582 +0900
committer Jeff Garzik <jeff@garzik.org> 1201083853 -0500

libata: zero xfer length on ATAPI data xfer IRQ is HSM violation

Treat zero xfer length as HSM violation.  While at it, add
unlikely()'s to ATAPI ireason and transfer length checks.

tj: Formatted patch and added unlikely()'s.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>