Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq

[pandora-kernel.git] / drivers / scsi / scsi_scan.c

diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 8d0d302..2d3c4ac 100644 (file)
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -293,6 +293,10 @@ static void scsi_target_dev_release(struct device *dev)
 {
        struct device *parent = dev->parent;
        struct scsi_target *starget = to_scsi_target(dev);
+       struct Scsi_Host *shost = dev_to_shost(parent);
+
+       if (shost->hostt->target_destroy)
+               shost->hostt->target_destroy(starget);
        kfree(starget);
        put_device(parent);
 }
@@ -360,9 +364,23 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
        list_add_tail(&starget->siblings, &shost->__targets);
        spin_unlock_irqrestore(shost->host_lock, flags);
        /* allocate and add */
-       transport_setup_device(&starget->dev);
-       device_add(&starget->dev);
-       transport_add_device(&starget->dev);
+       transport_setup_device(dev);
+       device_add(dev);
+       transport_add_device(dev);
+       if (shost->hostt->target_alloc) {
+               int error = shost->hostt->target_alloc(starget);
+
+               if(error) {
+                       dev_printk(KERN_ERR, dev, "target allocation failed, error %d\n", error);
+                       /* don't want scsi_target_reap to do the final
+                        * put because it will be under the host lock */
+                       get_device(dev);
+                       scsi_target_reap(starget);
+                       put_device(dev);
+                       return NULL;
+               }
+       }
+
        return starget;
 
  found:
@@ -625,6 +643,7 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags)
        case TYPE_MEDIUM_CHANGER:
        case TYPE_ENCLOSURE:
        case TYPE_COMM:
+       case TYPE_RBC:
                sdev->writeable = 1;
                break;
        case TYPE_WORM:
@@ -737,7 +756,8 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags)
         * register it and tell the rest of the kernel
         * about it.
         */
-       scsi_sysfs_add_sdev(sdev);
+       if (scsi_sysfs_add_sdev(sdev) != 0)
+               return SCSI_SCAN_NO_RESPONSE;
 
        return SCSI_SCAN_LUN_PRESENT;
 }
@@ -980,6 +1000,38 @@ static int scsilun_to_int(struct scsi_lun *scsilun)
        return lun;
 }
 
+/**
+ * int_to_scsilun: reverts an int into a scsi_lun
+ * @int:        integer to be reverted
+ * @scsilun:   struct scsi_lun to be set.
+ *
+ * Description:
+ *     Reverts the functionality of the scsilun_to_int, which packed
+ *     an 8-byte lun value into an int. This routine unpacks the int
+ *     back into the lun value.
+ *     Note: the scsilun_to_int() routine does not truly handle all
+ *     8bytes of the lun value. This functions restores only as much
+ *     as was set by the routine.
+ *
+ * Notes:
+ *     Given an integer : 0x0b030a04,  this function returns a
+ *     scsi_lun of : struct scsi_lun of: 0a 04 0b 03 00 00 00 00
+ *
+ **/
+void int_to_scsilun(unsigned int lun, struct scsi_lun *scsilun)
+{
+       int i;
+
+       memset(scsilun->scsi_lun, 0, sizeof(scsilun->scsi_lun));
+
+       for (i = 0; i < sizeof(lun); i += 2) {
+               scsilun->scsi_lun[i] = (lun >> 8) & 0xFF;
+               scsilun->scsi_lun[i+1] = lun & 0xFF;
+               lun = lun >> 16;
+       }
+}
+EXPORT_SYMBOL(int_to_scsilun);
+
 /**
  * scsi_report_lun_scan - Scan using SCSI REPORT LUN results
  * @sdevscan:  scan the host, channel, and id of this Scsi_Device