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[PATCH] libata: fix missing classes[] initialization in ata_bus_probe()

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ata_bus_probe() didn't initialize classes[] properly with
ATA_DEV_UNKNOWN.  As ->probe_reset() is allowed to leave @classes
alone when no device is present, this results in garbage class values.
ATM, the only affected driver is ata_piix.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2006-03-12 00:57:39 +09:00 committed by Jeff Garzik
parent 75f554bc13
commit 2061a47a9b
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/libata-core.c
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@ -1346,6 +1346,9 @@ static int ata_bus_probe(struct ata_port *ap)
/* reset */ /* reset */
if (ap->ops->probe_reset) { if (ap->ops->probe_reset) {
for (i = 0; i < ATA_MAX_DEVICES; i++)
classes[i] = ATA_DEV_UNKNOWN;
rc = ap->ops->probe_reset(ap, classes); rc = ap->ops->probe_reset(ap, classes);
if (rc) { if (rc) {
printk("ata%u: reset failed (errno=%d)\n", ap->id, rc); printk("ata%u: reset failed (errno=%d)\n", ap->id, rc);