path: root/drivers
diff options
authorAlan <alan@lxorguk.ukuu.org.uk>2007-02-05 16:28:30 +0000
committerJeff Garzik <jeff@garzik.org>2007-02-09 17:39:40 -0500
commit11750a40abddff1e0c6e0924902f914292d12277 (patch)
treeca8723dd1ebec5d005096721033c210a1b86714b /drivers
parentce053fa8b532aa038fba6230052daae5cd60eae6 (diff)
libata: Early CFA adapters are not required to support mode setting
If we are doing a PIO setup for a CFA card and it blows up with a device error then assume it is an older CFA card which doesn't support this rather than failing the device out of existance. Stands seperate to the quieting patch but that is obviously useful with this change. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers')
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 6a2083a6d175..479f95a5c0a3 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2333,6 +2333,10 @@ static int ata_dev_set_mode(struct ata_device *dev)
dev->flags |= ATA_DFLAG_PIO;
err_mask = ata_dev_set_xfermode(dev);
+ /* Old CFA may refuse this command, which is just fine */
+ if (dev->xfer_shift == ATA_SHIFT_PIO && ata_id_is_cfa(dev->id))
+ err_mask &= ~AC_ERR_DEV;
if (err_mask) {
ata_dev_printk(dev, KERN_ERR, "failed to set xfermode "
"(err_mask=0x%x)\n", err_mask);

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