forked from luck/tmp_suning_uos_patched
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>
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@ -2275,7 +2275,7 @@ void ata_sff_drain_fifo(struct ata_queued_cmd *qc)
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ap = qc->ap;
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/* Drain up to 64K of data before we give up this recovery method */
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for (count = 0; (ap->ops->sff_check_status(ap) & ATA_DRQ)
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&& count < 32768; count++)
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&& count < 65536; count += 2)
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ioread16(ap->ioaddr.data_addr);
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/* Can become DEBUG later */
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