Commit 9a8fd68b authored Dec 08, 2009 by Robert Hancock Committed by Jeff Garzik Dec 17, 2009

libata: fix reporting of drained bytes when clearing DRQ



When we drain data from a device to clear DRQ during error recovery,
the number of bytes reported as drained is too low by a factor of 2
because the count is actually reporting the number of words drained,
not bytes. Fix this.

Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

parent b2dec48c

drivers/ata/libata-sff.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2275,7 +2275,7 @@ void ata_sff_drain_fifo(struct ata_queued_cmd *qc)
		ap = qc->ap;
		/* Drain up to 64K of data before we give up this recovery method */
		for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
		&& count < 32768; count++)
		&& count < 65536; count += 2)
		ioread16(ap->ioaddr.data_addr);

		/* Can become DEBUG later */