md: centralise all freeing of an 'mddev' in 'md_free'
md_free is the .release handler for the md kobj_type.
So it makes sense to release all the objects referenced by
the mddev in there, rather than just prior to calling kobject_put
for what we think is the last time.
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index da838cc..970a8c4 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -221,12 +221,6 @@
if (!mddev->raid_disks && list_empty(&mddev->disks)) {
list_del(&mddev->all_mddevs);
spin_unlock(&all_mddevs_lock);
- if (mddev->queue)
- blk_cleanup_queue(mddev->queue);
- mddev->queue = NULL;
- if (mddev->sysfs_state)
- sysfs_put(mddev->sysfs_state);
- mddev->sysfs_state = NULL;
kobject_put(&mddev->kobj);
} else
spin_unlock(&all_mddevs_lock);
@@ -3451,6 +3445,17 @@
static void md_free(struct kobject *ko)
{
mddev_t *mddev = container_of(ko, mddev_t, kobj);
+
+ if (mddev->sysfs_state)
+ sysfs_put(mddev->sysfs_state);
+
+ if (mddev->gendisk) {
+ del_gendisk(mddev->gendisk);
+ put_disk(mddev->gendisk);
+ }
+ if (mddev->queue)
+ blk_cleanup_queue(mddev->queue);
+
kfree(mddev);
}
@@ -6435,9 +6440,6 @@
if (!disk)
continue;
export_array(mddev);
- del_gendisk(disk);
- put_disk(disk);
- mddev->gendisk = NULL;
mddev_put(mddev);
}
}