Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 5d687d7cffa..8077bdf5d30 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -603,6 +603,9 @@ void ata_scsi_error(struct Scsi_Host *host)
                         ata_link_for_each_dev(dev, link) {
                                 int devno = dev->devno;
 
+                                if (!ata_dev_enabled(dev))
+                                        continue;
+
                                 ehc->saved_xfer_mode[devno] = dev->xfer_mode;
                                 if (ata_ncq_enabled(dev))
                                         ehc->saved_ncq_enabled |= 1 << devno;
@@ -1161,6 +1164,7 @@ void ata_eh_detach_dev(struct ata_device *dev)
 {
         struct ata_link *link = dev->link;
         struct ata_port *ap = link->ap;
+        struct ata_eh_context *ehc = &link->eh_context;
         unsigned long flags;
 
         ata_dev_disable(dev);
@@ -1174,9 +1178,11 @@ void ata_eh_detach_dev(struct ata_device *dev)
                 ap->pflags |= ATA_PFLAG_SCSI_HOTPLUG;
         }
 
-        /* clear per-dev EH actions */
+        /* clear per-dev EH info */
         ata_eh_clear_action(link, dev, &link->eh_info, ATA_EH_PERDEV_MASK);
         ata_eh_clear_action(link, dev, &link->eh_context.i, ATA_EH_PERDEV_MASK);
+        ehc->saved_xfer_mode[dev->devno] = 0;
+        ehc->saved_ncq_enabled &= ~(1 << dev->devno);
 
         spin_unlock_irqrestore(ap->lock, flags);
 }
@@ -2787,6 +2793,9 @@ int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
 
         /* if data transfer is verified, clear DUBIOUS_XFER on ering top */
         ata_link_for_each_dev(dev, link) {
+                if (!ata_dev_enabled(dev))
+                        continue;
+
                 if (!(dev->flags & ATA_DFLAG_DUBIOUS_XFER)) {
                         struct ata_ering_entry *ent;
 
@@ -2808,6 +2817,9 @@ int ata_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
                 u8 saved_xfer_mode = ehc->saved_xfer_mode[dev->devno];
                 u8 saved_ncq = !!(ehc->saved_ncq_enabled & (1 << dev->devno));
 
+                if (!ata_dev_enabled(dev))
+                        continue;
+
                 if (dev->xfer_mode != saved_xfer_mode ||
                     ata_ncq_enabled(dev) != saved_ncq)
                         dev->flags |= ATA_DFLAG_DUBIOUS_XFER;