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=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 97E36C4CEC9 for ; Wed, 18 Sep 2019 02:20:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7599E21897 for ; Wed, 18 Sep 2019 02:20:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727821AbfIRCUF (ORCPT ); Tue, 17 Sep 2019 22:20:05 -0400 Received: from honk.sigxcpu.org ([24.134.29.49]:35238 "EHLO honk.sigxcpu.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727742AbfIRCUF (ORCPT ); Tue, 17 Sep 2019 22:20:05 -0400 Received: from localhost (localhost [127.0.0.1]) by honk.sigxcpu.org (Postfix) with ESMTP id E44F4FB02; Wed, 18 Sep 2019 04:20:03 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at honk.sigxcpu.org Received: from honk.sigxcpu.org ([127.0.0.1]) by localhost (honk.sigxcpu.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fyG1gRr3ImqY; Wed, 18 Sep 2019 04:20:02 +0200 (CEST) Received: by bogon.sigxcpu.org (Postfix, from userid 1000) id 2A4A649227; Tue, 17 Sep 2019 19:19:58 -0700 (PDT) From: =?UTF-8?q?Guido=20G=C3=BCnther?= To: Jacek Anaszewski , Pavel Machek , Dan Murphy , linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/5] leds: lm3692x: Print error value on dev_err Date: Tue, 17 Sep 2019 19:19:54 -0700 Message-Id: <9f95299fe7f98e4defb445e2e29531465a3a3860.1568772964.git.agx@sigxcpu.org> X-Mailer: git-send-email 2.23.0.rc1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-leds-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org This gives a way better idea what is going on. Signed-off-by: Guido Günther --- drivers/leds/leds-lm3692x.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c index 3d381f2f73d0..487228c2bed2 100644 --- a/drivers/leds/leds-lm3692x.c +++ b/drivers/leds/leds-lm3692x.c @@ -174,19 +174,20 @@ static int lm3692x_brightness_set(struct led_classdev *led_cdev, ret = lm3692x_fault_check(led); if (ret) { - dev_err(&led->client->dev, "Cannot read/clear faults\n"); + dev_err(&led->client->dev, "Cannot read/clear faults: %d\n", + ret); goto out; } ret = regmap_write(led->regmap, LM3692X_BRT_MSB, brt_val); if (ret) { - dev_err(&led->client->dev, "Cannot write MSB\n"); + dev_err(&led->client->dev, "Cannot write MSB: %d\n", ret); goto out; } ret = regmap_write(led->regmap, LM3692X_BRT_LSB, led_brightness_lsb); if (ret) { - dev_err(&led->client->dev, "Cannot write LSB\n"); + dev_err(&led->client->dev, "Cannot write LSB: %d\n", ret); goto out; } out: @@ -203,7 +204,7 @@ static int lm3692x_init(struct lm3692x_led *led) ret = regulator_enable(led->regulator); if (ret) { dev_err(&led->client->dev, - "Failed to enable regulator\n"); + "Failed to enable regulator: %d\n", ret); return ret; } } @@ -213,7 +214,8 @@ static int lm3692x_init(struct lm3692x_led *led) ret = lm3692x_fault_check(led); if (ret) { - dev_err(&led->client->dev, "Cannot read/clear faults\n"); + dev_err(&led->client->dev, "Cannot read/clear faults: %d\n", + ret); goto out; } @@ -409,7 +411,8 @@ static int lm3692x_remove(struct i2c_client *client) ret = regmap_update_bits(led->regmap, LM3692X_EN, LM3692X_DEVICE_EN, 0); if (ret) { - dev_err(&led->client->dev, "Failed to disable regulator\n"); + dev_err(&led->client->dev, "Failed to disable regulator: %d\n", + ret); return ret; } @@ -420,7 +423,7 @@ static int lm3692x_remove(struct i2c_client *client) ret = regulator_disable(led->regulator); if (ret) dev_err(&led->client->dev, - "Failed to disable regulator\n"); + "Failed to disable regulator: %d\n", ret); } mutex_destroy(&led->lock); -- 2.23.0.rc1