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libata: -ENODEV during prereset isn't an error

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During prereset, -ENODEV return from ata_wait_ready() is not an error.
This causes unnecessary bug message on controllers which uses 0xff to
indicate empty port.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2007-05-23 11:58:52 +02:00 committed by Jeff Garzik
parent fd7fe70161
commit 6dffaf61e2
1 changed files with 1 additions and 1 deletions
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2
drivers/ata/libata-core.c
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@ -3368,7 +3368,7 @@ int ata_std_prereset(struct ata_port *ap, unsigned long deadline)
*/
if (!(ap->flags & ATA_FLAG_SKIP_D2H_BSY) && !ata_port_offline(ap)) {
rc = ata_wait_ready(ap, deadline);
if (rc) {
if (rc && rc != -ENODEV) {
ata_port_printk(ap, KERN_WARNING, "device not ready "
"(errno=%d), forcing hardreset\n", rc);
ehc->i.action |= ATA_EH_HARDRESET;