tree 06b726e351b36e07434359a4d41d91de42891bcb
parent 5851fadce8824d5d4b8fd02c22ae098401f6489e
author Tejun Heo <htejun@gmail.com> 1173687848 +0900
committer Jeff Garzik <jeff@garzik.org> 1174319743 -0400

libata: don't whine if ->prereset() returns -ENOENT

->prereset() returns -ENOENT to tell libata that the port is empty and
reset sequencing should be stopped.  This is not an error condition.
Update ata_eh_reset() such that it sets device classes to ATA_DEV_NONE
and return success in on -ENOENT.  This makes spurious error message
go away.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>