From patchwork Fri Nov 24 08:06:28 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: 747070 Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5706B130 for ; Fri, 24 Nov 2023 00:10:46 -0800 (PST) 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 1r6RGp-0005J9-EQ; Fri, 24 Nov 2023 09:10:39 +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 1r6RGo-00BDaR-W2; Fri, 24 Nov 2023 09:10:39 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r6RGo-007Hhj-MB; Fri, 24 Nov 2023 09:10:38 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Ulf Hansson , Shawn Guo , Sascha Hauer , Marco Felsch , Peng Fan , Jindong Yue , Lucas Stach , Marek Vasut Cc: Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 4/9] pmdomain: imx8m-blk-ctrl: Convert to platform remove callback returning void Date: Fri, 24 Nov 2023 09:06:28 +0100 Message-ID: <20231124080623.564924-5-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231124080623.564924-1-u.kleine-koenig@pengutronix.de> References: <20231124080623.564924-1-u.kleine-koenig@pengutronix.de> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1958; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=9RtY4MHRyMFr8MKYXUlCW/f4TJPgb2MyEcC0qhlYUuE=; b=owGbwMvMwMXY3/A7olbonx/jabUkhtSEyBbrjUsy1uf8mHO5wpqvUeyEb0uxuuCBBvVTf7Nkq 80V3tZ1MhqzMDByMciKKbLYN67JtKqSi+xc++8yzCBWJpApDFycAjARxznsf0WcPF+7xL21Z9sV X8CQnrfNfuv2xx43he8+Dl04JXBt3e6dl+p+LC33i9+bl5selqu1tqsnfNf/3H6HrNSDIgyCDm/ /fr2/bX2RUrTwU7bskrW5s6vdfl6Y43rMyNZLuDje8ER3x3GbY9+56/ha/j2MLtZiTph77nDsBf ajs9t3LxVn3q35re1B7LbLOnr7OoUsZT0lP5YGd78PvPorPZDncLuj4GZ+9vIlD9Nnaqqxvav/P jPef9G7w5G/jgtNcEqfXxhffFHgelJmlYvfwaT5a8ot2QPDrGaYlZz6tPHH3pA4wa5s60tfJB8v ZpGSznYQuvM6jEvr/3TRDUl+hqskf+tJZJkyPdqoVfUBAA== 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-pm@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-König --- drivers/pmdomain/imx/imx8m-blk-ctrl.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/pmdomain/imx/imx8m-blk-ctrl.c b/drivers/pmdomain/imx/imx8m-blk-ctrl.c index cc5ef6e2f0a8..1341a707f61b 100644 --- a/drivers/pmdomain/imx/imx8m-blk-ctrl.c +++ b/drivers/pmdomain/imx/imx8m-blk-ctrl.c @@ -330,7 +330,7 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev) return ret; } -static int imx8m_blk_ctrl_remove(struct platform_device *pdev) +static void imx8m_blk_ctrl_remove(struct platform_device *pdev) { struct imx8m_blk_ctrl *bc = dev_get_drvdata(&pdev->dev); int i; @@ -347,8 +347,6 @@ static int imx8m_blk_ctrl_remove(struct platform_device *pdev) dev_pm_genpd_remove_notifier(bc->bus_power_dev); dev_pm_domain_detach(bc->bus_power_dev, true); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -888,7 +886,7 @@ MODULE_DEVICE_TABLE(of, imx8m_blk_ctrl_of_match); static struct platform_driver imx8m_blk_ctrl_driver = { .probe = imx8m_blk_ctrl_probe, - .remove = imx8m_blk_ctrl_remove, + .remove_new = imx8m_blk_ctrl_remove, .driver = { .name = "imx8m-blk-ctrl", .pm = &imx8m_blk_ctrl_pm_ops,