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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 7E5C8C3567B for ; Mon, 24 Feb 2020 09:42:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5385B20838 for ; Mon, 24 Feb 2020 09:42:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20150623.gappssmtp.com header.i=@bgdev-pl.20150623.gappssmtp.com header.b="0YBu5nh7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727319AbgBXJmF (ORCPT ); Mon, 24 Feb 2020 04:42:05 -0500 Received: from mail-wr1-f67.google.com ([209.85.221.67]:41303 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726673AbgBXJmE (ORCPT ); Mon, 24 Feb 2020 04:42:04 -0500 Received: by mail-wr1-f67.google.com with SMTP id c9so9537704wrw.8 for ; Mon, 24 Feb 2020 01:42:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Kc3RH6cl8PrURMVC2HcOMEqzVbKCqch6ndQPKF/V66A=; b=0YBu5nh7EwE0owIXSnCrf8JvY5+QrQDh3tlr/FACK7Kk/A5xfIV2CCrb7w7qcZoBJe CGVCX7By6mMfAtyy6KB/llK3WxNoXh8q36XqRmC08YtCHQaEGoPHSFt3yMgETa618fFf hd3zZojj95yUICFQI/GuITP83ur8BC+R+LsOos9rqNTwuslJsZ4g2HvHBCUo/HQlIRdK 6AIDYJNEUIGU4o9IaB42XitaT93J3Tf9qtEHAfI48+HOcxl6gVyw+2QkeRh+vLMtGVVk lxdwKibT8n+BfAduR5BlRGAEzaQ76n+Az+2fKfX+VIg5Sf0tU5IeRtQ5ZfCqQExoxRX1 Msaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Kc3RH6cl8PrURMVC2HcOMEqzVbKCqch6ndQPKF/V66A=; b=DerbNxXY7CGT7FzAqVyxxmwNmvmjGsvUi6ZwlyJP5ejCgL1c09J6sxcJ+PLQiqpdEg qiHbqieXwe0eRELxFCtLIK3rK0ekri6VN5IVkPmij2MQFWD9XtxQNeUIKFgZK8wmEh7h EdFmkSoqEWWlYx7WtRFL4i8gqTQhK6/M3LCyCZ/0/ZfAw5B9/UvEaogydaf/twuDFEnL CzLiXk7pTiZtufbSVg3CmYM8r/jMGrernRdTwthI+xvr+t89foRw5HQTFzDNNsYdRwoX 54Tnu2wwWvTmqa1GLZKwE5QbKUi+NDxAdwhLTgV3eENHB/SYi9pOdwR+uKVKcvpI9zPX t7Aw== X-Gm-Message-State: APjAAAW8ZdVggUIhGeI6RvfEqubfLOAPryY3aKcrhTrh1JBTC8ut8UKY fQb4rbWsNc2zid5iMBQAq1p1Og== X-Google-Smtp-Source: APXvYqxZ3HxmXrwssMNqpiLFkVCqb97GUflqayOJ0zf7Ob3MpyGGefF2z+IZSNgNrmgmJhlsrnw9ig== X-Received: by 2002:adf:facc:: with SMTP id a12mr37775788wrs.100.1582537323534; Mon, 24 Feb 2020 01:42:03 -0800 (PST) Received: from localhost.localdomain (lfbn-nic-1-65-232.w2-15.abo.wanadoo.fr. [2.15.156.232]) by smtp.gmail.com with ESMTPSA id t10sm16920730wmi.40.2020.02.24.01.42.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Feb 2020 01:42:03 -0800 (PST) From: Bartosz Golaszewski To: Linus Walleij , Srinivas Kandagatla , Khouloud Touil , Geert Uytterhoeven Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH 1/3] gpiolib: provide VALIDATE_DESC_PTR() macro Date: Mon, 24 Feb 2020 10:41:56 +0100 Message-Id: <20200224094158.28761-2-brgl@bgdev.pl> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200224094158.28761-1-brgl@bgdev.pl> References: <20200224094158.28761-1-brgl@bgdev.pl> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: Bartosz Golaszewski We're about to add a public GPIO function that takes a descriptor as argument and returns a pointer. Add a corresponding macro wrapping the validate_desc() function that returns an ERR_PTR() on error. Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpiolib.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 4d0106ceeba7..da8ffd40aa97 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2864,6 +2864,14 @@ static int validate_desc(const struct gpio_desc *desc, const char *func) return; \ } while (0) +#define VALIDATE_DESC_PTR(desc) do { \ + int __valid = validate_desc(desc, __func__); \ + if (__valid < 0) \ + return ERR_PTR(__valid); \ + if (__valid == 0) \ + return NULL; \ + } while (0) + int gpiod_request(struct gpio_desc *desc, const char *label) { int ret = -EPROBE_DEFER; -- 2.25.0