From: Christoph Hellwig <hch@lst.de>
Date: Wed, 18 Aug 2021 16:45:32 +0200
Subject: [PATCH] block: add a sanity check for a live disk in del_gendisk
Git-commit: 40b3a52ffc5bc3b5427d5d35b035cfb19d03fdd6
Patch-mainline: v5.15-rc1
References: jsc#PED-1183
Add a sanity check to del_gendisk to do nothing when the disk wasn't
successfully added. This papers over the complete lack of add_disk
error handling, which is about to get fixed gradually.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20210818144542.19305-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
block/genhd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/genhd.c b/block/genhd.c
index 02cd9ec93e52..935f74c652f1 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -579,7 +579,7 @@ void del_gendisk(struct gendisk *disk)
{
might_sleep();
- if (WARN_ON_ONCE(!disk->queue))
+ if (WARN_ON_ONCE(!disk_live(disk)))
return;
blk_integrity_del(disk);
--
2.35.3