linux-kernel - [PATCH] usb: cdns3: Fixed incorrect gadget state

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Date:   Wed, 23 Jun 2021 09:02:47 +0200
From:   Pawel Laszczak <pawell@...ence.com>
To:     <peter.chen@...nel.org>
CC:     <rogerq@...nel.org>, <a-govindraju@...com>,
        <gregkh@...uxfoundation.org>, <felipe.balbi@...ux.intel.com>,
        <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kishon@...com>, <kurahul@...ence.com>, <sparmar@...ence.com>,
        Pawel Laszczak <pawell@...ence.com>, <stable@...r.kernel.org>
Subject: [PATCH] usb: cdns3: Fixed incorrect gadget state

From: Pawel Laszczak <pawell@...ence.com>

For delayed status phase, the usb_gadget->state was set
to USB_STATE_ADDRESS and it has never been updated to
USB_STATE_CONFIGURED.
Patch updates the gadget state to correct USB_STATE_CONFIGURED.
As a result of this bug the controller was not able to enter to
Test Mode while using MSC function.

Cc: <stable@...r.kernel.org>
Fixes: 7733f6c32e36 ("usb: cdns3: Add Cadence USB3 DRD Driver")
Signed-off-by: Pawel Laszczak <pawell@...ence.com>
---
 drivers/usb/cdns3/cdns3-ep0.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/cdns3/cdns3-ep0.c b/drivers/usb/cdns3/cdns3-ep0.c
index 9a17802275d5..ec5bfd8944c3 100644
--- a/drivers/usb/cdns3/cdns3-ep0.c
+++ b/drivers/usb/cdns3/cdns3-ep0.c
@@ -731,6 +731,7 @@ static int cdns3_gadget_ep0_queue(struct usb_ep *ep,
 		request->actual = 0;
 		priv_dev->status_completion_no_call = true;
 		priv_dev->pending_status_request = request;
+		usb_gadget_set_state(&priv_dev->gadget, USB_STATE_CONFIGURED);
 		spin_unlock_irqrestore(&priv_dev->lock, flags);
 
 		/*
-- 
2.25.1