From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: Mon, 28 Nov 2022 06:33:37 +0000 (+0800)
Subject: usb: xhci-mtk: fix leakage of shared hcd when fail to set wakeup irq
X-Git-Tag: v5.15.92~762
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ffb14aac2658873050671198543b9b8194149c14;p=platform%2Fkernel%2Flinux-rpi.git

usb: xhci-mtk: fix leakage of shared hcd when fail to set wakeup irq

commit 03a88b0bafbe3f548729d970d8366f48718c9b19 upstream.

Can not set the @shared_hcd to NULL before decrease the usage count
by usb_put_hcd(), this will cause the shared hcd not released.

Fixes: 04284eb74e0c ("usb: xhci-mtk: add support runtime PM")
Cc: <stable@vger.kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20221128063337.18124-1-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index c53f6f2..f8a63c1 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -619,7 +619,6 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 
 dealloc_usb3_hcd:
 	usb_remove_hcd(xhci->shared_hcd);
-	xhci->shared_hcd = NULL;
 
 dealloc_usb2_hcd:
 	usb_remove_hcd(hcd);