tree d4acc5c1f65eca5522bbd28ae2702e54a1f8db0a
parent 3c324283e6cdb79210cf7975c3e40d3ba3e672b2
author Elias Oltmanns <eo@nebensachen.de> 1225706468 +0900
committer Jeff Garzik <jgarzik@redhat.com> 1225778904 -0500

libata: Fix a potential race condition in ata_scsi_park_show()

Peter Moulder has pointed out that there is a slight chance that a
negative value might be passed to jiffies_to_msecs() in
ata_scsi_park_show(). This is fixed by saving the value of jiffies in a
local variable, thus also reducing code since the volatile variable
jiffies is accessed only once.

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: Tejun Heo <tj.kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>