Merge branch 'upstream-greg' of gregkh@master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev

4 files changed, 24 insertions, 29 deletions

diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 19745a31072b..5e8afc876980 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -567,8 +567,8 @@ static int piix_sata_prereset(struct ata_port *ap)
                         present = 1;
         }
 
-        DPRINTK("ata%u: LEAVE, pcs=0x%x present_mask=0x%x\n",
-                ap->id, pcs, present_mask);
+        DPRINTK("ata%u: LEAVE, pcs=0x%x present=0x%x\n",
+                ap->id, pcs, present);
 
         if (!present) {
                 ata_port_printk(ap, KERN_INFO, "SATA port has no device.\n");
@@ -828,6 +828,7 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev,
                 case IDE:
                         WARN_ON((i & 1) || map[i + 1] != IDE);
                         pinfo[i / 2] = piix_port_info[ich5_pata];
+                        pinfo[i / 2].private_data = hpriv;
                         i++;
                         printk(" IDE IDE");
                         break;
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 386e5f21e191..16fc2dd8f2f7 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -5185,28 +5185,6 @@ void ata_host_stop (struct ata_host_set *host_set)
                 iounmap(host_set->mmio_base);
 }
 
-
-/**
- *      ata_host_remove - Unregister SCSI host structure with upper layers
- *      @ap: Port to unregister
- *      @do_unregister: 1 if we fully unregister, 0 to just stop the port
- *
- *      LOCKING:
- *      Inherited from caller.
- */
-
-static void ata_host_remove(struct ata_port *ap, unsigned int do_unregister)
-{
-        struct Scsi_Host *sh = ap->host;
-
-        DPRINTK("ENTER\n");
-
-        if (do_unregister)
-                scsi_remove_host(sh);
-
-        ap->ops->port_stop(ap);
-}
-
 /**
  *      ata_dev_init - Initialize an ata_device structure
  *      @dev: Device structure to initialize
@@ -5532,8 +5510,11 @@ int ata_device_add(const struct ata_probe_ent *ent)
 
 err_out:
         for (i = 0; i < count; i++) {
-                ata_host_remove(host_set->ports[i], 1);
-                scsi_host_put(host_set->ports[i]->host);
+                struct ata_port *ap = host_set->ports[i];
+                if (ap) {
+                        ap->ops->port_stop(ap);
+                        scsi_host_put(ap->host);
+                }
         }
 err_free_ret:
         kfree(host_set);
@@ -5558,7 +5539,7 @@ void ata_port_detach(struct ata_port *ap)
         int i;
 
         if (!ap->ops->error_handler)
-                return;
+                goto skip_eh;
 
         /* tell EH we're leaving & flush EH */
         spin_lock_irqsave(ap->lock, flags);
@@ -5594,6 +5575,7 @@ void ata_port_detach(struct ata_port *ap)
         cancel_delayed_work(&ap->hotplug_task);
         flush_workqueue(ata_aux_wq);
 
+ skip_eh:
         /* remove the associated SCSI host */
         scsi_remove_host(ap->host);
 }
@@ -5662,7 +5644,7 @@ int ata_scsi_release(struct Scsi_Host *host)
         DPRINTK("ENTER\n");
 
         ap->ops->port_disable(ap);
-        ata_host_remove(ap, 0);
+        ap->ops->port_stop(ap);
 
         DPRINTK("EXIT\n");
         return 1;
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 7ced41ecde86..e92c31d698ff 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -2353,6 +2353,19 @@ static void atapi_qc_complete(struct ata_queued_cmd *qc)
                         ata_gen_ata_desc_sense(qc);
                 }
 
+                /* SCSI EH automatically locks door if sdev->locked is
+                 * set.  Sometimes door lock request continues to
+                 * fail, for example, when no media is present.  This
+                 * creates a loop - SCSI EH issues door lock which
+                 * fails and gets invoked again to acquire sense data
+                 * for the failed command.
+                 *
+                 * If door lock fails, always clear sdev->locked to
+                 * avoid this infinite loop.
+                 */
+                if (qc->cdb[0] == ALLOW_MEDIUM_REMOVAL)
+                        qc->dev->sdev->locked = 0;
+
                 qc->scsicmd->result = SAM_STAT_CHECK_CONDITION;
                 qc->scsidone(cmd);
                 ata_qc_free(qc);
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 2e0f4a4076af..3f368c7d3ef9 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -1106,7 +1106,6 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
         probe_ent->irq = pdev->irq;
         probe_ent->irq_flags = IRQF_SHARED;
-        probe_ent->mmio_base = port_base;
         probe_ent->private_data = hpriv;
 
         hpriv->host_base = host_base;