linux-kernel - [PATCH v2] wifi: rtw88: fix memory leak in rtw_usb

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Date:   Thu,  9 Mar 2023 10:16:36 +0800
From:   Dongliang Mu <dzm91@...t.edu.cn>
To:     Yan-Hsuan Chuang <tony0620emma@...il.com>,
        Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     Dongliang Mu <dzm91@...t.edu.cn>, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2] wifi: rtw88: fix memory leak in rtw_usb_probe()

drivers/net/wireless/realtek/rtw88/usb.c:876 rtw_usb_probe()
warn: 'hw' from ieee80211_alloc_hw() not released on lines: 811

Fix this by modifying return to a goto statement.

Signed-off-by: Dongliang Mu <dzm91@...t.edu.cn>
---
v1->v2: modify the commit title
 drivers/net/wireless/realtek/rtw88/usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c
index 2a8336b1847a..68e1b782d199 100644
--- a/drivers/net/wireless/realtek/rtw88/usb.c
+++ b/drivers/net/wireless/realtek/rtw88/usb.c
@@ -808,7 +808,7 @@ int rtw_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 
 	ret = rtw_usb_alloc_rx_bufs(rtwusb);
 	if (ret)
-		return ret;
+		goto err_release_hw;
 
 	ret = rtw_core_init(rtwdev);
 	if (ret)
-- 
2.39.2