linux-kernel - [PATCH] [v3] block: Fix an error handling in add

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Date:   Sun, 17 Jan 2021 16:53:42 +0800
From:   Dinghao Liu <dinghao.liu@....edu.cn>
To:     dinghao.liu@....edu.cn, kjlu@....edu
Cc:     Jens Axboe <axboe@...nel.dk>, Jan Kara <jack@...e.cz>,
        Hannes Reinecke <hare@...e.de>,
        Johannes Thumshirn <johannes.thumshirn@....com>,
        Ming Lei <ming.lei@...hat.com>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] [v3] block: Fix an error handling in add_partition

Once we have called device_initialize(), we should use put_device() to
give up the reference on error, just like what we have done on failure
of device_add().

Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
---

Changelog:

v2: - Refine commit message.

v3: - Add '[v3]' to the title.
---
 block/partitions/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/partitions/core.c b/block/partitions/core.c
index e7d776db803b..23460cee9de5 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -384,7 +384,7 @@ static struct block_device *add_partition(struct gendisk *disk, int partno,
 
 	err = blk_alloc_devt(bdev, &devt);
 	if (err)
-		goto out_bdput;
+		goto out_put;
 	pdev->devt = devt;
 
 	/* delay uevent until 'holders' subdir is created */
-- 
2.17.1