From patchwork Wed May 12 14:44:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 437037 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 7E18EC4363F for ; Wed, 12 May 2021 15:29:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 63FB961C28 for ; Wed, 12 May 2021 15:29:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234002AbhELP3T (ORCPT ); Wed, 12 May 2021 11:29:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:60306 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233551AbhELPYP (ORCPT ); Wed, 12 May 2021 11:24:15 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id B3458619B4; Wed, 12 May 2021 15:09:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620832190; bh=UzEpmqrKLhRDY5yqTYrJzl2TtaBXi6EbG6hW1Jrm+fA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OUCnA85ANBYMQDIRgIinvpTiqHmbIzWN2dBF79aO/VPD71bAqjzsB4JVVuLdVs9dk cNlGQ2MKHMIaAHxWjhJMZQIPFwCLX8oOO5bJd6S22vDFaqRgev/o4su0Z0aRFFzXfb TsKJw4eWX0GJlxAQQS7KSLMQz6xuG0JJln3bHNnc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Fabian Vogt , Sasha Levin Subject: [PATCH 5.10 177/530] fotg210-udc: Fix EP0 IN requests bigger than two packets Date: Wed, 12 May 2021 16:44:47 +0200 Message-Id: <20210512144825.651104263@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144819.664462530@linuxfoundation.org> References: <20210512144819.664462530@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Fabian Vogt [ Upstream commit 078ba935651e149c92c41161e0322e3372cc2705 ] For a 134 Byte packet, it sends the first two 64 Byte packets just fine, but then notice that less than a packet is remaining and call fotg210_done without actually sending the rest. Fixes: b84a8dee23fd ("usb: gadget: add Faraday fotg210_udc driver") Signed-off-by: Fabian Vogt Link: https://lore.kernel.org/r/20210324141115.9384-3-fabian@ritter-vogt.de Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/gadget/udc/fotg210-udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c index 39260007ebf8..345827cf1b64 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -820,7 +820,7 @@ static void fotg210_ep0in(struct fotg210_udc *fotg210) if (req->req.length) fotg210_start_dma(ep, req); - if ((req->req.length - req->req.actual) < ep->ep.maxpacket) + if (req->req.actual == req->req.length) fotg210_done(ep, req, 0); } else { fotg210_set_cxdone(fotg210);