[ARM] 4567/1: Fix 'Oops - undefined instruction' when CONFIG_VFP=y on non VFP device

[~andy/linux] / drivers / ata / pata_it821x.c

diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 7225124d96c20613d56969280e7131774a932974..5d8b91e70ecd82b41b33b3ab407eeb650599d9ff 100644 (file)
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -80,7 +80,7 @@
 
 
 #define DRV_NAME "pata_it821x"
-#define DRV_VERSION "0.3.7"
+#define DRV_VERSION "0.3.8"
 
 struct it821x_dev
 {
@@ -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;