linux-kernel - [PATCH -next v4] block: remove WARN_ON() from bd_link_disk

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Message-ID: <20220623074100.2251301-1-linan122@huawei.com>
Date:   Thu, 23 Jun 2022 15:41:00 +0800
From:   Li Nan <linan122@...wei.com>
To:     <axboe@...nel.dk>
CC:     <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linan122@...wei.com>, <yukuai3@...wei.com>, <yi.zhang@...wei.com>
Subject: [PATCH -next v4] block: remove WARN_ON() from bd_link_disk_holder

Since commit 83cbce957446("block: add error handling for device_add_disk /
add_disk"), bdev->bd_holder_dir can not be empty now, so remove WARN_ON()
from bd_link_disk_holder.

Signed-off-by: Li Nan <linan122@...wei.com>
---
 block/holder.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/block/holder.c b/block/holder.c
index 8d750281a1cd..5283bc804cc1 100644
--- a/block/holder.c
+++ b/block/holder.c
@@ -79,10 +79,6 @@ int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk)
 
 	WARN_ON_ONCE(!bdev->bd_holder);
 
-	/* FIXME: remove the following once add_disk() handles errors */
-	if (WARN_ON(!bdev->bd_holder_dir))
-		goto out_unlock;
-
 	holder = bd_find_holder_disk(bdev, disk);
 	if (holder) {
 		holder->refcnt++;
-- 
2.31.1