From patchwork Fri Nov 24 08:06:29 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: 13467146 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 C949ED44 for ; Fri, 24 Nov 2023 00:10:45 -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-0005Jn-KJ; 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 1r6RGp-00BDaX-65; 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-007Hhn-T3; Fri, 24 Nov 2023 09:10:38 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Ulf Hansson , Shawn Guo , Sascha Hauer , Lucas Stach , Peng Fan , Jindong Yue , Marco Felsch Cc: Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 5/9] pmdomain: imx8mp-blk-ctrl: Convert to platform remove callback returning void Date: Fri, 24 Nov 2023 09:06:29 +0100 Message-ID: <20231124080623.564924-6-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=1975; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=J5TKZe9XLCtZo13dKntrQAhmrW1hBWN7ep3GErxGSb4=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlYFmFzRQ+zF7AayhzjkInvefSsyDYQVsRWydC2 ExeqteDVgaJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZWBZhQAKCRCPgPtYfRL+ TuerCACjUkhJOMTAWU5F7ffBVTR02zxyGwXwDjPmTyAB7JwraU26/yU8U0fMz8Nw6fqdo7i636Q uCTzHklNV/XddZcv5JET/PNz9mdO8KS7shoVHBxjQKd59/Cgrn+uBRpXbq2AFrkFyl50fUdQedS SFUwf8L8/Zk96wOmqvK+bHbU6/M/eXv2b6V1naO6QM29/9JeJko9Q6zOzm0m+qJX/a9+7vmVZfW OZdYexRy5xmhAh1U50TH8ZRQg7s1RwCwlbODRIW7SOsBCH3v/lOzrUwdp8ixUIlf2dLs/Cz/swe W22tBXxsSzXq4KaxBXaouzEdebmasB9SxvFfhxtY84/IFsYD 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/imx8mp-blk-ctrl.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/pmdomain/imx/imx8mp-blk-ctrl.c b/drivers/pmdomain/imx/imx8mp-blk-ctrl.c index c6ac32c1a8c1..e3203eb6a022 100644 --- a/drivers/pmdomain/imx/imx8mp-blk-ctrl.c +++ b/drivers/pmdomain/imx/imx8mp-blk-ctrl.c @@ -760,7 +760,7 @@ static int imx8mp_blk_ctrl_probe(struct platform_device *pdev) return ret; } -static int imx8mp_blk_ctrl_remove(struct platform_device *pdev) +static void imx8mp_blk_ctrl_remove(struct platform_device *pdev) { struct imx8mp_blk_ctrl *bc = dev_get_drvdata(&pdev->dev); int i; @@ -777,8 +777,6 @@ static int imx8mp_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 @@ -856,7 +854,7 @@ MODULE_DEVICE_TABLE(of, imx8mp_blk_ctrl_of_match); static struct platform_driver imx8mp_blk_ctrl_driver = { .probe = imx8mp_blk_ctrl_probe, - .remove = imx8mp_blk_ctrl_remove, + .remove_new = imx8mp_blk_ctrl_remove, .driver = { .name = "imx8mp-blk-ctrl", .pm = &imx8mp_blk_ctrl_pm_ops,