Commit 4fb4615b authored Oct 29, 2007 by Tejun Heo Committed by Jeff Garzik Oct 29, 2007

libata: no need to speed down if already at PIO0



After reset, transfer mode is always PIO0 regardless of
dev->xfer_mask.  Check dev->pio_mode before trying to slow down after
configuration failure.  This prevents bogus speed down before device
is actually configured.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

parent cdeab114

drivers/ata/libata-eh.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2437,7 +2437,7 @@ static int ata_eh_handle_dev_fail(struct ata_device *dev, int err)
		/* give it just one more chance */
		ehc->tries[dev->devno] = min(ehc->tries[dev->devno], 1);
		case -EIO:
		if (ehc->tries[dev->devno] == 1) {
		if (ehc->tries[dev->devno] == 1 && dev->pio_mode > XFER_PIO_0) {
		/* This is the last chance, better to slow
		* down than lose it.
		*/