Received: by 10.213.65.68 with SMTP id h4csp279888imn; Fri, 23 Mar 2018 04:37:16 -0700 (PDT) X-Google-Smtp-Source: AG47ELtceo4DDc+bJfMVuEw2+VMBnZjVDfiIc0zP2//+L74oXCRmWFno+OeWMQ/P6Kjr6K+FnFWz X-Received: by 10.99.66.135 with SMTP id p129mr21135083pga.220.1521805036674; Fri, 23 Mar 2018 04:37:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1521805036; cv=none; d=google.com; s=arc-20160816; b=boltgUjMDaDz7APlgcXfl0WxbTlCK4lYe3XdUh/I4euWHhOJfKmYMFFOUeqe4H6eSJ loMKhdoSsCpaej3JDvOJ5Cv5heiDFxiimSPbVvjB6VIecTfWZ4HJJGvDOPP/mb/hd7OX euVHfziA6NvYgiee+PsoAnC0K7x8WiQY20YnYXvU2UBj7qYxnyFYfU+rtVU1jk9q0VI1 dmgbjr4a8hfcGpDdbDHfbqQUP2cCvL8XdXf/aYYKZ2NC1n8hkrL2HD9T/u9voFQQnADo EHeZiNyCOdKQFWyshPOxQZLUiguQysHL8nsby3Uy7WI+bnT80/tKYtqq/63T/rmF3iWs W+xQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :organization:references:in-reply-to:date:cc:to:from:subject :message-id:arc-authentication-results; bh=hXBQhl1Vd1LeW1h2lwtnhxeJW/WxEj9fMkaurPoa4P4=; b=xQ0YHuer623eKjJZZpXODXaTjAl98TcHroinud0eiLmIjJJUliZeuOY1V24nkO/QXu JPct+7R25G+ErEFgN8aITkCMxbd6+XN2wDU8D7ERuvGihnEkaatHCEmowdMbJpqiVtm2 rjTf2bU0QLN5uGWFVTYti3Ro3C4NByTQMd2SCKi2On5sRUAFAsuMvDMht8KjV15HzmE+ 9r8/BNz8bXDxOSu+XjmVGNrmxNvoC1v/3TSHSsiiBYVZeObdEzhBIfQd/Ahmf8jE/w6O 2gmi94m5TCnLoX7XePzfwzRN/br26K0ahHf9edgXieii89nEIqO9Ge+rmPHo23aO5fQ8 ko8Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id bi10-v6si8140990plb.105.2018.03.23.04.37.02; Fri, 23 Mar 2018 04:37:16 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755076AbeCWLgM (ORCPT + 99 others); Fri, 23 Mar 2018 07:36:12 -0400 Received: from mga18.intel.com ([134.134.136.126]:46044 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751600AbeCWLgJ (ORCPT ); Fri, 23 Mar 2018 07:36:09 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Mar 2018 04:36:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,349,1517904000"; d="scan'208";a="185362490" Received: from smile.fi.intel.com (HELO smile) ([10.237.72.86]) by orsmga004.jf.intel.com with ESMTP; 23 Mar 2018 04:36:05 -0700 Message-ID: <1521804964.23017.96.camel@linux.intel.com> Subject: Re: [PATCH v3 3/3] pinctrl: qcom: Don't allow protected pins to be requested From: Andy Shevchenko To: Timur Tabi , Stephen Boyd , Linus Walleij Cc: Stephen Boyd , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, Bjorn Andersson , Grant Likely , linux-gpio@vger.kernel.org Date: Fri, 23 Mar 2018 13:36:04 +0200 In-Reply-To: <97380342-c3aa-5d34-7b22-f6ebbab4bafe@codeaurora.org> References: <20180321165848.89751-1-swboyd@chromium.org> <20180321165848.89751-4-swboyd@chromium.org> <97380342-c3aa-5d34-7b22-f6ebbab4bafe@codeaurora.org> Organization: Intel Finland Oy Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.5-1+b1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2018-03-22 at 19:16 -0500, Timur Tabi wrote: > On 03/21/2018 11:58 AM, Stephen Boyd wrote: > > +static int msm_gpio_init_valid_mask(struct gpio_chip *chip, > > + struct msm_pinctrl *pctrl) > > +{ > > + int ret; > > + unsigned int len, i; > > + unsigned int max_gpios = pctrl->soc->ngpios; > > + > > + /* The number of GPIOs in the ACPI tables */ > > + ret = device_property_read_u16_array(pctrl->dev, "gpios", > > NULL, 0); > > + if (ret > 0 && ret < max_gpios) { > > This needs to be ret <= max_gpios, otherwise it will fail if every > GPIO > is available. > > And it should print an error message and return an error code if ret > > > max_gpios. Perhaps makes sense to do the opposite condition if (ret < 0 || ret > max_gpios) { ... error handling ... } -- Andy Shevchenko Intel Finland Oy