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-rw-r--r--block/genhd.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 96a66f671720..00620e01e043 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -725,7 +725,8 @@ void del_gendisk(struct gendisk *disk)
* Unregister bdi before releasing device numbers (as they can
* get reused and we'd get clashes in sysfs).
*/
- bdi_unregister(disk->queue->backing_dev_info);
+ if (!(disk->flags & GENHD_FL_HIDDEN))
+ bdi_unregister(disk->queue->backing_dev_info);
blk_unregister_queue(disk);
} else {
WARN_ON(1);

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