linux-kernel - [PATCH] mcb: mcb-parse: fix error handing in chameleon_parse

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Message-ID: <20221031114417.613612-1-yangyingliang@huawei.com>
Date:   Mon, 31 Oct 2022 19:44:17 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>
CC:     <morbidrsa@...il.com>, <jth@...nel.org>,
        <Johannes.Thumshirn@....com>
Subject: [PATCH] mcb: mcb-parse: fix error handing in chameleon_parse_gdd()

If mcb_device_register() returns error in chameleon_parse_gdd(), the refcount
of bus and device name are leaked. Fix this by calling put_device() to give up
the reference, so they can be released in mcb_release_dev() and kobject_cleanup().

Fixes: 3764e82e5150 ("drivers: Introduce MEN Chameleon Bus")
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/mcb/mcb-parse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mcb/mcb-parse.c b/drivers/mcb/mcb-parse.c
index 0266bfddfbe2..aa6938da0db8 100644
--- a/drivers/mcb/mcb-parse.c
+++ b/drivers/mcb/mcb-parse.c
@@ -108,7 +108,7 @@ static int chameleon_parse_gdd(struct mcb_bus *bus,
 	return 0;
 
 err:
-	mcb_free_dev(mdev);
+	put_device(&mdev->dev);
 
 	return ret;
 }
-- 
2.25.1