From df4f49bfb09ace2ad1518ab0c07829fb694e3bb7 Mon Sep 17 00:00:00 2001
From: Jeff Norden <jnorden@math.tntech.edu>
Date: Tue, 4 Sep 2007 11:07:20 -0500
Subject: [PATCH] --- yaml --- r: 64773 b: refs/heads/master c:
 bce7d5e0e1fc0c1f1251b7f21a19cb48207408b6 h: refs/heads/master i:   64771:
 c0e6b558cea9207f516bdc683b9a56782e41e8e1 v: v3

---
 [refs]                          | 2 +-
 trunk/drivers/ata/pata_it821x.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 5ff7afc5ebbc..6ab247209f0b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 08ebd43d6b9b63de681b8f255c0fabae8033527c
+refs/heads/master: bce7d5e0e1fc0c1f1251b7f21a19cb48207408b6
diff --git a/trunk/drivers/ata/pata_it821x.c b/trunk/drivers/ata/pata_it821x.c
index ed637ae33ece..5d8b91e70ecd 100644
--- a/trunk/drivers/ata/pata_it821x.c
+++ b/trunk/drivers/ata/pata_it821x.c
@@ -533,6 +533,10 @@ static int it821x_check_atapi_dma(struct ata_queued_cmd *qc)
 	struct ata_port *ap = qc->ap;
 	struct it821x_dev *itdev = ap->private_data;
 
+	/* Only use dma for transfers to/from the media. */
+	if (qc->nbytes < 2048)
+		return -EOPNOTSUPP;
+
 	/* No ATAPI DMA in smart mode */
 	if (itdev->smart)
 		return -EOPNOTSUPP;