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=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 C0175C3A59E for ; Sat, 24 Aug 2019 23:37:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9CF7920850 for ; Sat, 24 Aug 2019 23:37:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728326AbfHXXhq (ORCPT ); Sat, 24 Aug 2019 19:37:46 -0400 Received: from antares.kleine-koenig.org ([94.130.110.236]:40764 "EHLO antares.kleine-koenig.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727950AbfHXXhp (ORCPT ); Sat, 24 Aug 2019 19:37:45 -0400 Received: by antares.kleine-koenig.org (Postfix, from userid 1000) id E542D77F67F; Sun, 25 Aug 2019 01:37:43 +0200 (CEST) From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Andrew Morton , Linus Walleij , Bartosz Golaszewski Cc: Jonathan Corbet , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org Subject: [PATCH v1 2/2] gpiolib: print an error name instead of a plain number in error string Date: Sun, 25 Aug 2019 01:37:24 +0200 Message-Id: <20190824233724.1775-2-uwe@kleine-koenig.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190824233724.1775-1-uwe@kleine-koenig.org> References: <20190824233724.1775-1-uwe@kleine-koenig.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an example that makes use of the just introduced printk format %dE that prints (e.g.) "EIO" when the matching integer is -EIO (or EIO). Signed-off-by: Uwe Kleine-König --- drivers/gpio/gpiolib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index f497003f119c..b50ea24f087f 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1247,7 +1247,7 @@ static void gpiochip_setup_devs(void) list_for_each_entry(gdev, &gpio_devices, list) { err = gpiochip_setup_dev(gdev); if (err) - pr_err("%s: Failed to initialize gpio device (%d)\n", + pr_err("%s: Failed to initialize gpio device (%dE)\n", dev_name(&gdev->dev), err); } } -- 2.20.1