[PATCH] libata: revalidate after transfer mode configuration
Revalidate device after transfer mode configuration. This also makes
dev->id up-to-date.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 5d0adfa..5dbcf0c 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -1625,6 +1625,12 @@
idx = ofs + dev->xfer_shift;
WARN_ON(idx >= ARRAY_SIZE(xfer_mode_str));
+ if (ata_dev_revalidate(ap, dev, 0)) {
+ printk(KERN_ERR "ata%u: failed to revalidate after set "
+ "xfermode, disabled\n", ap->id);
+ ata_port_disable(ap);
+ }
+
DPRINTK("idx=%d xfer_shift=%u, xfer_mode=0x%x, base=0x%x, offset=%d\n",
idx, dev->xfer_shift, (int)dev->xfer_mode, (int)base, ofs);