From patchwork Thu Jun 30 07:57:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12901323 X-Patchwork-Delegate: cw00.choi@samsung.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62FAAC43334 for ; Thu, 30 Jun 2022 07:59:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233341AbiF3H7A (ORCPT ); Thu, 30 Jun 2022 03:59:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51564 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233434AbiF3H6v (ORCPT ); Thu, 30 Jun 2022 03:58:51 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C842C41306; Thu, 30 Jun 2022 00:58:50 -0700 (PDT) Received: from dimapc.. (109-252-118-164.nat.spd-mgts.ru [109.252.118.164]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dmitry.osipenko) by madras.collabora.co.uk (Postfix) with ESMTPSA id 6CE3C66017F5; Thu, 30 Jun 2022 08:58:48 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1656575929; bh=7ycOl0tf4G0sSnkM0jeUXBwerp1p2XzwKGi4RzRqJcc=; h=From:To:Cc:Subject:Date:From; b=eUlcV6ImEVCpigysQR9fXFnu70De58qNsrrPtXqNOz0ykpk3Q2m+8aUHilk1fHLq3 L1JRbkW3VeVQdGNX4CykiTBf7AYHLQGo15WHv2W6iAvZGETCfjjzyxklCLRx/m7vvG GFkbuEo0wifOz+A4NXr60gOPuJPgFOT7UpobDOc58iNG5oEJfEOGuEZnzSsKFXtUMN cHYN5YINR5HAbIti5MU2DRLvBn7wc7sYmeEQxha+mde8njJCeOoQtf+O5BveL8YZRv aACXGjxNSx2HbzvtFrP50dwBiApVzrxEc9QGtOy34zS02zi77ntAF2iTrnnT6oCgnm RW8rPGO1FKpww== From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , MyungJoo Ham , Kyungmin Park , Chanwoo Choi Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1] PM / devfreq: tegra30: Add error message for devm_devfreq_add_device() Date: Thu, 30 Jun 2022 10:57:51 +0300 Message-Id: <20220630075751.1360786-1-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org It's difficult to notice that driver failed to probe by looking at KMSG when devm_devfreq_add_device() fails. Add explicit error message for this case. Signed-off-by: Dmitry Osipenko --- drivers/devfreq/tegra30-devfreq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c index 30382bdfc655..f0d414b881e3 100644 --- a/drivers/devfreq/tegra30-devfreq.c +++ b/drivers/devfreq/tegra30-devfreq.c @@ -926,8 +926,10 @@ static int tegra_devfreq_probe(struct platform_device *pdev) devfreq = devm_devfreq_add_device(&pdev->dev, &tegra_devfreq_profile, "tegra_actmon", NULL); - if (IS_ERR(devfreq)) + if (IS_ERR(devfreq)) { + dev_err(&pdev->dev, "Failed to add device: %pe\n", devfreq); return PTR_ERR(devfreq); + } return 0; }