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,URIBL_BLOCKED,USER_AGENT_GIT 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 E09B3C35656 for ; Fri, 21 Feb 2020 15:49:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B6A1D208E4 for ; Fri, 21 Feb 2020 15:49:00 +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="RI1Eye7X" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729317AbgBUPs7 (ORCPT ); Fri, 21 Feb 2020 10:48:59 -0500 Received: from mail-wm1-f65.google.com ([209.85.128.65]:36174 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729179AbgBUPsu (ORCPT ); Fri, 21 Feb 2020 10:48:50 -0500 Received: by mail-wm1-f65.google.com with SMTP id p17so2412869wma.1 for ; Fri, 21 Feb 2020 07:48:49 -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=RI1Eye7XDj1Sf4dEbOo6SKh+OtOPT62d9EGBP15dioK9//v/oxEheCrG4DZXrkVurJ VEU03SSY5RtDayC9Ly5GNiz1jPKY8k7sxHYdSIOzdX6lnBGm1HBtvLxdaqnJSz5MtGvB Bxg1LmCfvHxMb+Ux9j6QNOK7//ktcTYB3yHsnONKRDiNj3hKYEHh4TyZYJmJ6StVvCDb K3n+8GRLuWsP+tacCC4LVSnIg+Sy6ENIjVWC3xF4UEIuFu1cEOsj7A+HxoHe0CSrJroR 4mBHsP/ElDeMemZ10+r2VeAYr+5PcEoDnwO8CDjZL6XEfodYS2VWeDXPfYD43k9Ry8Dg 6qnA== 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=HVBoc831slU+Z43nNEBxcjYpWb7ZLa1CUVAFx0u2dlAkwePJZr+OLhOSppIWEVmIRW NQHS78K5olXskq69zzLbteUIeqQkQ+n59vtKeA1aIeWpWoromyhgYO6LpD2PY0nH6QNF poEPcfe1mZVu7lK3yJIDG/J3fa7DdE0VWDjRPyuBE5pte5G8k8QDRj1b3uIDDfOfeMZO M4j1PUFplEvpDp9wFpaHHA/V9MJU8LOA9LEhf7FKnjZA++UaxqMaHFoWcWqEZzJUcQUG L3BNS7RhjjMxQWPKN1l+R1QLZZ3/HFc6OcTQIZyMzIch6SPo1Xzgi66dO/ONSOsH02xK 1uTA== X-Gm-Message-State: APjAAAVcRUXRPLCj4eECU5tSv4oXj82Fdbzam7gnSOAvn+nYO+gt9rYu h+gVFx4YXgXJ/YQpSIwbprVehw== X-Google-Smtp-Source: APXvYqwm5JScae4Vtb7EJK4NqO1U0EeoMiI7GvTzMu19s3xt71xFidsN/+ghrTO1Ugo/ZubaVCEiZw== X-Received: by 2002:a7b:c119:: with SMTP id w25mr4640116wmi.116.1582300129076; Fri, 21 Feb 2020 07:48:49 -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 h10sm4267947wml.18.2020.02.21.07.48.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Feb 2020 07:48:48 -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 v5 2/5] gpiolib: provide VALIDATE_DESC_PTR() macro Date: Fri, 21 Feb 2020 16:48:34 +0100 Message-Id: <20200221154837.18845-3-brgl@bgdev.pl> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200221154837.18845-1-brgl@bgdev.pl> References: <20200221154837.18845-1-brgl@bgdev.pl> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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