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=-10.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 4919CC433E2 for ; Sat, 5 Sep 2020 22:14:23 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 65CA220663 for ; Sat, 5 Sep 2020 22:14:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="qC5duntF" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 65CA220663 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=sntech.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=VZUTjoXRHOOVc2iqOPDQwGI4bEf0gGJCz2fNTTlHqSY=; b=qC5duntFHyozNXIHASpT/+LEO LjgVpo+LJe/IQLj4igCOMurNyR2ykRCZKHL7KxI3geH0yP3NG8qFxJ2hQA4Y3CRvCh23f8e3f+cwb BQ2wfgEu2ouVpiYvDAQ8Sh/yHtje4Mgzzejfu/8UztQGUskGBrwKk4tid48VBkrpAQ6FJ8FMlg/vQ PPKAEnVrVtyeXaoM7nwaMyxChXAaspvTukXNVICUDwOu0R3JsyDpyiFnri5sZztxCCSCVFx1AUxBf pGWf3e2809wmRbfoHSS0jWFi3ZnZe8LemaFPIDnzNFmcrfniOZH4IR3kpC1he+o4PS3SbBPNn6V/T taLf+PDZg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kEgRs-00070p-Cu; Sat, 05 Sep 2020 22:14:16 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kEgRq-00070Q-E4 for linux-rockchip@lists.infradead.org; Sat, 05 Sep 2020 22:14:15 +0000 Received: from ip5f5aa64a.dynamic.kabel-deutschland.de ([95.90.166.74] helo=diego.localnet) by gloria.sntech.de with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kEgRp-0005oz-3h; Sun, 06 Sep 2020 00:14:13 +0200 From: Heiko =?ISO-8859-1?Q?St=FCbner?= To: linus.walleij@linaro.org, Jianqun Xu Subject: Re: [PATCH 5/6] pinctrl: rockchip: fix crash caused by invalid gpio bank Date: Sun, 06 Sep 2020 00:14:12 +0200 Message-ID: <6529745.9OfISSL0U5@diego> In-Reply-To: <20200831085010.7235-1-jay.xu@rock-chips.com> References: <20200831084753.7115-1-jay.xu@rock-chips.com> <20200831085010.7235-1-jay.xu@rock-chips.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200905_181414_486600_A7B22625 X-CRM114-Status: GOOD ( 20.21 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-gpio@vger.kernel.org, Jianqun Xu , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Hi, Am Montag, 31. August 2020, 10:50:10 CEST schrieb Jianqun Xu: > Add valid check for gpio bank. Please add more description on where this happened. > Change-Id: Ia4609c3045b5df7879beab3c15d791ff54a1f49b Please drop the change-id. > Signed-off-by: Jianqun Xu > --- > drivers/pinctrl/pinctrl-rockchip.c | 10 ++++++++-- > 1 file changed, 8 insertions(+), 2 deletions(-) > > diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c > index 6080573155f6..5b16b69e311f 100644 > --- a/drivers/pinctrl/pinctrl-rockchip.c > +++ b/drivers/pinctrl/pinctrl-rockchip.c > @@ -2526,9 +2526,9 @@ static int rockchip_pmx_set(struct pinctrl_dev *pctldev, unsigned selector, > break; > } > > - if (ret) { > + if (ret && cnt) { > /* revert the already done pin settings */ > - for (cnt--; cnt >= 0; cnt--) > + for (cnt--; cnt >= 0 && !data[cnt].func; cnt--) This looks unrelated and as it's not a "check for a valid gpio-bank" it should become a separate patch with a commit message describing it nicely. > rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0); > > return ret; > @@ -2599,9 +2599,13 @@ static int rockchip_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, > unsigned offset, bool input) > { > struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); > + struct rockchip_pin_bank *bank = &info->ctrl->pin_banks[offset / 32]; > struct gpio_chip *chip; > int pin; > > + if (!bank || !bank->valid) > + return 0; > + > chip = range->gc; > pin = offset - chip->base; > dev_dbg(info->dev, "gpio_direction for pin %u as %s-%d to %s\n", > @@ -3022,6 +3026,8 @@ static int rockchip_pinctrl_register(struct platform_device *pdev, > > for (bank = 0; bank < info->ctrl->nr_banks; ++bank) { > pin_bank = &info->ctrl->pin_banks[bank]; > + if (!pin_bank->valid) > + continue; Please add a blank line here > pin_bank->grange.name = pin_bank->name; > pin_bank->grange.id = bank; > pin_bank->grange.pin_base = pin_bank->pin_base; > Thanks Heiko _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip