linux-kernel - [PATCH] mfd: dln2: Fix double put in dln2

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Message-Id: <20230925024134.9683-1-dinghao.liu@zju.edu.cn>
Date:   Mon, 25 Sep 2023 10:41:33 +0800
From:   Dinghao Liu <dinghao.liu@....edu.cn>
To:     dinghao.liu@....edu.cn
Cc:     Lee Jones <lee@...nel.org>, Qiang Ning <qning0106@....com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: dln2: Fix double put in dln2_probe

The dln2_free() already contains usb_put_dev(). Therefore,
the redundant usb_put_dev() before dln2_free() may lead to
a double free.

Fixes: 96da8f148396 ("mfd: dln2: Fix memory leak in dln2_probe()")
Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
---
 drivers/mfd/dln2.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c
index c7510434380a..fbbe82c6e75b 100644
--- a/drivers/mfd/dln2.c
+++ b/drivers/mfd/dln2.c
@@ -826,7 +826,6 @@ static int dln2_probe(struct usb_interface *interface,
 	dln2_stop_rx_urbs(dln2);
 
 out_free:
-	usb_put_dev(dln2->usb_dev);
 	dln2_free(dln2);
 
 	return ret;
-- 
2.17.1