From patchwork Wed May 12 14:44:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 438000 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 BB6E0C4361A for ; Wed, 12 May 2021 16:42:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 81A25611AC for ; Wed, 12 May 2021 16:42:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237869AbhELQnN (ORCPT ); Wed, 12 May 2021 12:43:13 -0400 Received: from mail.kernel.org ([198.145.29.99]:51024 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242480AbhELQey (ORCPT ); Wed, 12 May 2021 12:34:54 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id D51E361CC2; Wed, 12 May 2021 15:59:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620835183; bh=DF8prHhm7BdjJr3JuvxXGbq5KxsOC0UJ246nObn0pFQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OobCb1xaJ8JHkBf4wFiynUenkqpv54V9oVVEZETWwybrj2jcCJxt0tG7Rfe7418+7 naCw1nUaGS1M4cPFkVdM8fZ8v316KokDdvqxUvlzKGLtEQ8ap2uf9C3Ai5a1TNy+rm H55vGHaMtrOB8zEZSIk2h3vSXi00TYj6XQiOap/8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Fabian Vogt , Sasha Levin Subject: [PATCH 5.12 224/677] fotg210-udc: Remove a dubious condition leading to fotg210_done Date: Wed, 12 May 2021 16:44:30 +0200 Message-Id: <20210512144844.678322700@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144837.204217980@linuxfoundation.org> References: <20210512144837.204217980@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 c7f755b243494d6043aadcd9a2989cb157958b95 ] When the EP0 IN request was not completed but less than a packet sent, it would complete the request successfully. That doesn't make sense and can't really happen as fotg210_start_dma always sends min(length, maxpkt) bytes. Fixes: b84a8dee23fd ("usb: gadget: add Faraday fotg210_udc driver") Signed-off-by: Fabian Vogt Link: https://lore.kernel.org/r/20210324141115.9384-4-fabian@ritter-vogt.de Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/gadget/udc/fotg210-udc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c index 345827cf1b64..a3ad93bfd256 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -379,8 +379,7 @@ static void fotg210_ep0_queue(struct fotg210_ep *ep, } if (ep->dir_in) { /* if IN */ fotg210_start_dma(ep, req); - if ((req->req.length == req->req.actual) || - (req->req.actual < ep->ep.maxpacket)) + if (req->req.length == req->req.actual) fotg210_done(ep, req, 0); } else { /* OUT */ u32 value = ioread32(ep->fotg210->reg + FOTG210_DMISGR0);