From nobody Thu Nov 14 05:10:33 2024 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 8E3E046453 for ; Sun, 17 Dec 2023 14:30:17 +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-0006Y8-By; 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-00GUhn-Nz; 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-004hzk-Ef; Sun, 17 Dec 2023 15:30:06 +0100 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Krzysztof Kozlowski Cc: kernel@pengutronix.de, Thierry Reding , Jonathan Hunter , Rob Herring , linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH 13/15] memory: tegra210-emc: Convert to platform remove callback returning void Date: Sun, 17 Dec 2023 15:29:39 +0100 Message-ID: <3e2951685dddbc0ab32244916a9849af206a6730.1702822744.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 Content-Type: text/plain; charset="utf-8" X-Developer-Signature: v=1; a=openpgp-sha256; l=1901; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=bGdyoxMNmY/bbwpr5SN+sb3K9b9jnZzp/Hcxotdsv9Y=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlfwXUZZG5GWUBTUeLiKtuoBiiZylSrm31PtSWX 94NiU6Y59uJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZX8F1AAKCRCPgPtYfRL+ TgCOB/0dPqf5bYKYlXnyRskNAJ2J1KfXnjmdTEdDVhDx7V8W651gEkJ9kWcgIzMMPe1kNm9w/MY /FZWlvbRm+V21imJBp+IdlVEXmodVoxUIwNOuZcKHz2yP/OSnVf8zfhKPorwXKlH/wT/INl4zzj +Pp7/rJ8FcK4/aCw0fdDYKFlGNvaThJQ4VOY/UeHWvqjAnhYDzc/gNwlbV0mKnaiBA9aaJV3neO ++YWHaihxoT0q8mH8WePbRn7Xf1x6AvpL/1VSfbvIXOmGixnJk50Zj8A5ci7txtFmrLqJ3yTTg1 gM3wuXnlc82ARyW0RhkX1kgKKS5rMIX9fyRC7pAkdkeMOsaI X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: quoted-printable 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 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-K=C3=B6nig --- drivers/memory/tegra/tegra210-emc-core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/memory/tegra/tegra210-emc-core.c b/drivers/memory/tegr= a/tegra210-emc-core.c index 3300bde47c13..78ca1d6c0977 100644 --- a/drivers/memory/tegra/tegra210-emc-core.c +++ b/drivers/memory/tegra/tegra210-emc-core.c @@ -1985,15 +1985,13 @@ static int tegra210_emc_probe(struct platform_devic= e *pdev) return err; } =20 -static int tegra210_emc_remove(struct platform_device *pdev) +static void tegra210_emc_remove(struct platform_device *pdev) { struct tegra210_emc *emc =3D platform_get_drvdata(pdev); =20 debugfs_remove_recursive(emc->debugfs.root); tegra210_clk_emc_detach(emc->clk); of_reserved_mem_device_release(emc->dev); - - return 0; } =20 static int __maybe_unused tegra210_emc_suspend(struct device *dev) @@ -2053,7 +2051,7 @@ static struct platform_driver tegra210_emc_driver =3D= { .pm =3D &tegra210_emc_pm_ops, }, .probe =3D tegra210_emc_probe, - .remove =3D tegra210_emc_remove, + .remove_new =3D tegra210_emc_remove, }; =20 module_platform_driver(tegra210_emc_driver); --=20 2.42.0