{
struct scsi_device *sdev;
struct device *parent;
- struct scsi_target *starget;
struct list_head *this, *tmp;
unsigned long flags;
sdev = container_of(work, struct scsi_device, ew.work);
parent = sdev->sdev_gendev.parent;
- starget = to_scsi_target(parent);
spin_lock_irqsave(sdev->host->host_lock, flags);
- starget->reap_ref++;
list_del(&sdev->siblings);
list_del(&sdev->same_target_siblings);
list_del(&sdev->starved_entry);
/* NULL queue means the device can't be used */
sdev->request_queue = NULL;
- scsi_target_reap(scsi_target(sdev));
-
kfree(sdev->inquiry);
kfree(sdev);
sdev->host->hostt->slave_destroy(sdev);
transport_destroy_device(dev);
+ /*
+ * Paired with the kref_get() in scsi_sysfs_initialize(). We have
+ * remoed sysfs visibility from the device, so make the target
+ * invisible if this was the last device underneath it.
+ */
+ scsi_target_reap(scsi_target(sdev));
+
put_device(dev);
}
continue;
if (starget->dev.parent == dev || &starget->dev == dev) {
/* assuming new targets arrive at the end */
- starget->reap_ref++;
+ kref_get(&starget->reap_ref);
spin_unlock_irqrestore(shost->host_lock, flags);
if (last)
scsi_target_reap(last);
list_add_tail(&sdev->same_target_siblings, &starget->devices);
list_add_tail(&sdev->siblings, &shost->__devices);
spin_unlock_irqrestore(shost->host_lock, flags);
+ /*
+ * device can now only be removed via __scsi_remove_device() so hold
+ * the target. Target will be held in CREATED state until something
+ * beneath it becomes visible (in which case it moves to RUNNING)
+ */
+ kref_get(&starget->reap_ref);
}
int scsi_is_sdev_device(const struct device *dev)