From patchwork Sun Dec 17 14:29:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 180022 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:24d3:b0:fb:cd0c:d3e with SMTP id r19csp734007dyi; Sun, 17 Dec 2023 06:33:45 -0800 (PST) X-Google-Smtp-Source: AGHT+IGi5wXGdVr5zDyWbNZxNVId6WdpD+KaKTKKTkgvczaDJmT69OeATfbuFiXJ5w0omcNYIpvl X-Received: by 2002:a17:907:9729:b0:a1e:eebd:ecd with SMTP id jg41-20020a170907972900b00a1eeebd0ecdmr16879305ejc.32.1702823624857; Sun, 17 Dec 2023 06:33:44 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1702823624; cv=none; d=google.com; s=arc-20160816; b=TOwozKR6z1/Ps0UtsweBjBfosnZTuJWXbahj6BFjdWojBJmDabRk77TE80LGXMRYgy MAMn2DuXC1nqAUvyZqfyGyW8Y1cDZfW6sWghh4B6OoHdukWw6pqgitKZKAuHDYKNLojm 4hgwCjC/Tbkf26QTozFBy5XC4hkoK2J0SKzLhmJs347vB1FXSkl8gyyzlI3MHagYBJKg FtvxV9AOotAhpsHKasG5N539f/knPxvl6XGH9XjnsBzJr4aP2UMOunnPB5Jca7WlN+ph vjEROP7Y13KV4NDTXU+oufV5B5xUWLdQ/awTGG0jjW4ie4FE6AjXaNOAShMof/gX+3mQ zt3g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from; bh=2l6rUO3FU57LU2ByRE7nn777CLXoHS0K7lXnMkMnTBc=; fh=Gq4Q8RtlSH//4ogwlXh78nnzRJBNHDuZfGFnJVtTxgk=; b=QtVI7BwZSRzhThXEjYKgT62L2P6ez229ckmiWAIogazILqCta+7jTg2Tp2Yl274XhA IP/jHseVS9WRptWrKh8GPTSSAWEokQREt7ZcKWVtvOY60OYcmxDW8K9GAgRf1h60j8J8 pk5/0XwA7S1rl1oSYtlf7QvNXIy/uvOPt/W8Mq6YUKpa8eICllmcOnnn2ULJ7r5To0sf 2rABdeCtY4MS+vyRRAgaNpKQCJ5xOo8nPI2rQZqYE0m3qMBn7mpceIERl1lNLzM1HgGv BTX9mCSOjskM2oySQFn4mvO95g3fD2HiaTh3+1StyiKv9J/5Kr46/y75tPFqKfEvb1s/ TVag== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-2637-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-2637-ouuuleilei=gmail.com@vger.kernel.org" Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. [147.75.80.249]) by mx.google.com with ESMTPS id qx14-20020a170906fcce00b00a232a3229e1si1224368ejb.529.2023.12.17.06.33.44 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Dec 2023 06:33:44 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-2637-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-2637-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-2637-ouuuleilei=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 756491F220AD for ; Sun, 17 Dec 2023 14:33:44 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 399F14B130; Sun, 17 Dec 2023 14:30:31 +0000 (UTC) X-Original-To: linux-kernel@vger.kernel.org Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 57DDF44C90 for ; Sun, 17 Dec 2023 14:30:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rEs9f-0006XT-NU; Sun, 17 Dec 2023 15:30:07 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rEs9e-00GUhk-HB; Sun, 17 Dec 2023 15:30:06 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1rEs9e-004hzg-7v; Sun, 17 Dec 2023 15:30:06 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Krzysztof Kozlowski Cc: kernel@pengutronix.de, Thierry Reding , Jonathan Hunter , Sumit Gupta , Nick Alcock , linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH 12/15] memory: tegra186-emc: Convert to platform remove callback returning void Date: Sun, 17 Dec 2023 15:29:38 +0100 Message-ID: <8481c7e7d5b024325e6b1aabf7cb3a3707d211d6.1702822744.git.u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1927; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=8/pftyzoFtmGA6p6jcaOA6JIc1RRi2neeGtIXzu26sU=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlfwXTkEYXXtmYxZ4s8+U/GoL3SKSKZkW9evRbN GNv9diXtaCJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZX8F0wAKCRCPgPtYfRL+ TmZ3B/wJqToPNYpxaErGUho2q1O5sv/fIn6IWr3tr95NscNpSGNq98icF5USm3P5n1jy5oK88H5 YAQSlahvOmYs3rlGOim9tJoxC8ItfqRb/3iRX6qQGuZNw1Cc2JLO5LSJTUwW93w8XhpJ/5bULki krUehMq8ikMVSaZW3KbOp6KmNOeb5XcSZvDAZG8BOsEs6rnyGCH024RseHZVmIsR23awOUiW2Yb MQTegUYdZs/1HF0lmqThU3+P2nSaTP3hFGNZg/PQs8jrZlUdrLS4v0rlEznJwT4uX/7mXikD8Fs 3A+Mud6NvEvfG5kelN5c+20Hev2uWwabIDmkMFzMf9eCMY3E X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1785539985230291028 X-GMAIL-MSGID: 1785539985230291028 The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König --- drivers/memory/tegra/tegra186-emc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/memory/tegra/tegra186-emc.c b/drivers/memory/tegra/tegra186-emc.c index 4007f4e16d74..fcd4aea48bda 100644 --- a/drivers/memory/tegra/tegra186-emc.c +++ b/drivers/memory/tegra/tegra186-emc.c @@ -378,7 +378,7 @@ static int tegra186_emc_probe(struct platform_device *pdev) return err; } -static int tegra186_emc_remove(struct platform_device *pdev) +static void tegra186_emc_remove(struct platform_device *pdev) { struct tegra_mc *mc = dev_get_drvdata(pdev->dev.parent); struct tegra186_emc *emc = platform_get_drvdata(pdev); @@ -387,8 +387,6 @@ static int tegra186_emc_remove(struct platform_device *pdev) mc->bpmp = NULL; tegra_bpmp_put(emc->bpmp); - - return 0; } static const struct of_device_id tegra186_emc_of_match[] = { @@ -413,7 +411,7 @@ static struct platform_driver tegra186_emc_driver = { .sync_state = icc_sync_state, }, .probe = tegra186_emc_probe, - .remove = tegra186_emc_remove, + .remove_new = tegra186_emc_remove, }; module_platform_driver(tegra186_emc_driver);