linux-kernel - [PATCH 5.15 121/177] usb: xhci-mtk: fix list

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Message-Id: <20211220143044.148958063@linuxfoundation.org>
Date:   Mon, 20 Dec 2021 15:34:31 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chunfeng Yun <chunfeng.yun@...iatek.com>
Subject: [PATCH 5.15 121/177] usb: xhci-mtk: fix list_del warning when enable list debug

From: Chunfeng Yun <chunfeng.yun@...iatek.com>

commit ccc14c6cfd346e85c3ecb970975afd5132763437 upstream.

There is warning of 'list_del corruption' when enable list debug
(CONFIG_DEBUG_LIST=y), fix it by using list_del_init()

Fixes: 4ce186665e7c ("usb: xhci-mtk: Do not use xhci's virt_dev in drop_endpoint")
Cc: stable <stable@...r.kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
Link: https://lore.kernel.org/r/20211209025422.17108-1-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/host/xhci-mtk-sch.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -781,7 +781,7 @@ int xhci_mtk_check_bandwidth(struct usb_
 
 	ret = xhci_check_bandwidth(hcd, udev);
 	if (!ret)
-		INIT_LIST_HEAD(&mtk->bw_ep_chk_list);
+		list_del_init(&mtk->bw_ep_chk_list);
 
 	return ret;
 }