linux-kernel - [PATCH 1/3] usb: mtu3: sync interrupt before unbind the udc

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Date:   Thu, 9 Jun 2022 15:42:31 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <linux-usb@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Eddie Hung <eddie.hung@...iatek.com>
Subject: [PATCH 1/3] usb: mtu3: sync interrupt before unbind the udc

Register gadget irq to avoid the interrupt handler is occurred
or scheduled during the unbind flow, may happen when do android
function switch stress test.

Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
---
 drivers/usb/mtu3/mtu3_gadget.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index 9977600616d7..d57cea62fe6b 100644
--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -680,6 +680,7 @@ int mtu3_gadget_setup(struct mtu3 *mtu)
 	mtu->g.speed = USB_SPEED_UNKNOWN;
 	mtu->g.sg_supported = 0;
 	mtu->g.name = MTU3_DRIVER_NAME;
+	mtu->g.irq = mtu->irq;
 	mtu->is_active = 0;
 	mtu->delayed_status = false;
 
-- 
2.18.0