linux-kernel - [PATCH v2 01/13] nvdimm/btt: do not call del

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Date:   Wed,  3 Nov 2021 05:21:45 -0700
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     axboe@...nel.dk, hch@....de, penguin-kernel@...ove.sakura.ne.jp,
        dan.j.williams@...el.com, vishal.l.verma@...el.com,
        dave.jiang@...el.com, ira.weiny@...el.com, richard@....at,
        miquel.raynal@...tlin.com, vigneshr@...com, efremov@...ux.com,
        song@...nel.org, martin.petersen@...cle.com, hare@...e.de,
        jack@...e.cz, ming.lei@...hat.com, tj@...nel.org, mcgrof@...nel.org
Cc:     linux-mtd@...ts.infradead.org, linux-scsi@...r.kernel.org,
        linux-raid@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 01/13] nvdimm/btt: do not call del_gendisk() if not needed

del_gendisk() is not required if the disk has not been added.
On kernels prior to commit 40b3a52ffc5bc3 ("block: add a sanity
check for a live disk in del_gendisk") it is mandatory to not
call del_gendisk() if the underlying device has not been through
device_add().

Fixes: 41cd8b70c37a ("libnvdimm, btt: add support for blk integrity")
Reviewed-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Luis Chamberlain <mcgrof@...nel.org>
---
 drivers/nvdimm/btt.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index f10a50ffa047..a62f23b945f1 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1537,7 +1537,6 @@ static int btt_blk_init(struct btt *btt)
 		int rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt));
 
 		if (rc) {
-			del_gendisk(btt->btt_disk);
 			blk_cleanup_disk(btt->btt_disk);
 			return rc;
 		}
-- 
2.33.0