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@mediatek.com>
Link: https://lore.kernel.org/r/20220609074233.15532-1-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index 9977600616d7ea1957dac214691d8b8844df1d2d..d57cea62fe6b001c091f2a98ac0567a5eb8d3731 100644 (file)
--- 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;