usb: renesas_usbhs: fixup gadget.dev.driver when udc_stop.

current renesas_usbhs is using new style udc_start/stop from
af1d7056a5c1e5eaaf807ddd1423101db84668d0
(usb: gadget: renesas: convert to new style).

But current renesas_usbhs driver didn't care about gadget.dev.driver
when udc_stop. it cause rmmod oops.
This patch care it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index f4b032e..2be7381 100644 (file)
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -776,6 +776,7 @@ static int usbhsg_gadget_stop(struct usb_gadget *gadget,
                return -EINVAL;
 
        usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD);
+       gpriv->gadget.dev.driver = NULL;
        gpriv->driver = NULL;
 
        return 0;