[SCSI] libsas: Accept SAM_GOOD for ATAPI devices in sas_ata_task_done

A sas_task sent to an ATAPI devices returns SAM_GOOD if successful.
Therefore, we should treat this the same way we treat ATA commands
that succeed.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/libsas/sas_ata.c

@@ -100,7 +100,7 @@ static void sas_ata_task_done(struct sas_task *task)
 	dev = qc->ap->private_data;
 
 	spin_lock_irqsave(dev->sata_dev.ap->lock, flags);
-	if (stat->stat == SAS_PROTO_RESPONSE) {
+	if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_GOOD) {
 		ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf);
 		qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command);
 		dev->sata_dev.sstatus = resp->sstatus;