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=-18.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS 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 7710BC433EF for ; Tue, 14 Sep 2021 08:35:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 615FD6113B for ; Tue, 14 Sep 2021 08:35:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230273AbhINIgo (ORCPT ); Tue, 14 Sep 2021 04:36:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:43180 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231300AbhINIgk (ORCPT ); Tue, 14 Sep 2021 04:36:40 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id B2CD2610A6; Tue, 14 Sep 2021 08:35:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631608523; bh=wT5nalsEI9azZtjcrOfBuIoeRcuimIemK/6YUJd4jgE=; h=Subject:To:From:Date:From; b=aMHVvO3sWu8xa0mzD8vqJdheh18VgGLVRil/kcOh14GxJEu+/kVb95zOjkEwoODlw MvRqOtVMvhyVPybJiOJdBMKonr12QDzLcvWa5aqVHHwe2AVKZLTybqk9N2z55k/ydB P+MiUig5iUz2yEutw0/WDDxXa0ofloSbDaWZI30I= Subject: patch "usb: gadget: r8a66597: fix a loop in set_feature()" added to usb-linus To: dan.carpenter@oracle.com, balbi@kernel.org, gregkh@linuxfoundation.org, stable@vger.kernel.org, yoshihiro.shimoda.uh@renesas.com From: Date: Tue, 14 Sep 2021 10:35:18 +0200 Message-ID: <1631608518254143@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This is a note to let you know that I've just added the patch titled usb: gadget: r8a66597: fix a loop in set_feature() to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From 17956b53ebff6a490baf580a836cbd3eae94892b Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 6 Sep 2021 12:42:21 +0300 Subject: usb: gadget: r8a66597: fix a loop in set_feature() This loop is supposed to loop until if reads something other than CS_IDST or until it times out after 30,000 attempts. But because of the || vs && bug, it will never time out and instead it will loop a minimum of 30,000 times. This bug is quite old but the code is only used in USB_DEVICE_TEST_MODE so it probably doesn't affect regular usage. Fixes: 96fe53ef5498 ("usb: gadget: r8a66597-udc: add support for TEST_MODE") Cc: stable Reviewed-by: Yoshihiro Shimoda Acked-by: Felipe Balbi Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/20210906094221.GA10957@kili Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/udc/r8a66597-udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c index 65cae4883454..38e4d6b505a0 100644 --- a/drivers/usb/gadget/udc/r8a66597-udc.c +++ b/drivers/usb/gadget/udc/r8a66597-udc.c @@ -1250,7 +1250,7 @@ static void set_feature(struct r8a66597 *r8a66597, struct usb_ctrlrequest *ctrl) do { tmp = r8a66597_read(r8a66597, INTSTS0) & CTSQ; udelay(1); - } while (tmp != CS_IDST || timeout-- > 0); + } while (tmp != CS_IDST && timeout-- > 0); if (tmp == CS_IDST) r8a66597_bset(r8a66597, -- 2.33.0