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 22E41C4CEC9 for ; Fri, 20 Sep 2019 05:27:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EC70F2086A for ; Fri, 20 Sep 2019 05:27:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2408088AbfITF1O (ORCPT ); Fri, 20 Sep 2019 01:27:14 -0400 Received: from honk.sigxcpu.org ([24.134.29.49]:39708 "EHLO honk.sigxcpu.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392287AbfITF1O (ORCPT ); Fri, 20 Sep 2019 01:27:14 -0400 Received: from localhost (localhost [127.0.0.1]) by honk.sigxcpu.org (Postfix) with ESMTP id 28ED8FB02; Fri, 20 Sep 2019 07:27:12 +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 7LGiFDFAHeGf; Fri, 20 Sep 2019 07:27:11 +0200 (CEST) Received: by bogon.sigxcpu.org (Postfix, from userid 1000) id D8DC348847; Thu, 19 Sep 2019 22:27:07 -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 v2 3/5] leds: lm3692x: Handle failure to probe the regulator Date: Thu, 19 Sep 2019 22:27:05 -0700 Message-Id: <6f980a7d8acec4d33bcc78a11f5ce4ee392e7c05.1568957104.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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Instead use devm_regulator_get_optional since the regulator is optional and check for errors. Signed-off-by: Guido Günther Acked-by: Pavel Machek --- drivers/leds/leds-lm3692x.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c index 31115655f97b..6f6a17ec7c9f 100644 --- a/drivers/leds/leds-lm3692x.c +++ b/drivers/leds/leds-lm3692x.c @@ -337,9 +337,18 @@ static int lm3692x_probe_dt(struct lm3692x_led *led) return ret; } - led->regulator = devm_regulator_get(&led->client->dev, "vled"); - if (IS_ERR(led->regulator)) + led->regulator = devm_regulator_get_optional(&led->client->dev, "vled"); + if (IS_ERR(led->regulator)) { + ret = PTR_ERR(led->regulator); + if (ret != -ENODEV) { + if (ret != -EPROBE_DEFER) + dev_err(&led->client->dev, + "Failed to get vled regulator: %d\n", + ret); + return ret; + } led->regulator = NULL; + } child = device_get_next_child_node(&led->client->dev, child); if (!child) { -- 2.23.0.rc1