From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E740C433B4 for ; Fri, 7 May 2021 17:55:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7331861458 for ; Fri, 7 May 2021 17:55:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229524AbhEGR4Z (ORCPT ); Fri, 7 May 2021 13:56:25 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:14633 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229461AbhEGR4Z (ORCPT ); Fri, 7 May 2021 13:56:25 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1620410125; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=QEiUnP3LOUi2nXe4DLoSZyC62ngztBL3XlxmT2ZBLW0=; b=ETszTd/+BAALEfoceOhFBle4KPQ1mary2sfS6DoGHLhTxnuj/KVRFAxVukZo4dbgKbf30c3E v+bCTgcULQpK2YgUQBHeVLu1KIvIW0+84DbYNa7uwxZwo6zWSj9gFAKGp9kCPM9E1MYSss4M AhB3F2wMIbOwXU6uYIcmIhg+Vks= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI1ZjI4MyIsICJzdGFibGVAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n02.prod.us-east-1.postgun.com with SMTP id 60957f0c74f773a664850dfb (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 07 May 2021 17:55:24 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 88B24C43145; Fri, 7 May 2021 17:55:23 +0000 (UTC) Received: from wcheng-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wcheng) by smtp.codeaurora.org (Postfix) with ESMTPSA id 76AFDC4338A; Fri, 7 May 2021 17:55:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 76AFDC4338A Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=wcheng@codeaurora.org From: Wesley Cheng To: balbi@kernel.org, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Thinh.Nguyen@synopsys.com, jackp@codeaurora.org, Wesley Cheng , stable@vger.kernel.org Subject: [PATCH v2] usb: dwc3: gadget: Return success always for kick transfer in ep queue Date: Fri, 7 May 2021 10:55:19 -0700 Message-Id: <1620410119-24971-1-git-send-email-wcheng@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org If an error is received when issuing a start or update transfer command, the error handler will stop all active requests (including the current USB request), and call dwc3_gadget_giveback() to notify function drivers of the requests which have been stopped. Avoid returning an error for kick transfer during EP queue, to remove duplicate cleanup operations on the request being queued. Fixes: 8d99087c2db8 ("usb: dwc3: gadget: Properly handle failed kick_transfer") cc: stable@vger.kernel.org Signed-off-by: Wesley Cheng --- Changes in v2: - Added Fixes tag and Cc'ed stable Changes in v1: - Renamed commit title due to new implementation - Return success always for kick transfer during ep queue Previous patchset: https://lore.kernel.org/linux-usb/875yzxibur.fsf@kernel.org/T/#t drivers/usb/dwc3/gadget.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index dd80e5c..a5b7fd9 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1684,7 +1684,9 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) } } - return __dwc3_gadget_kick_transfer(dep); + __dwc3_gadget_kick_transfer(dep); + + return 0; } static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request, -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project