From patchwork Sun May 7 16:25:50 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: 13233796 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2EAC5C77B7C for ; Sun, 7 May 2023 16:27:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 577E510E252; Sun, 7 May 2023 16:26:48 +0000 (UTC) Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3ECCA10E222 for ; Sun, 7 May 2023 16:26:38 +0000 (UTC) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pvhDX-0001zk-4L; Sun, 07 May 2023 18:26:35 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pvhDV-001nDG-MD; Sun, 07 May 2023 18:26:33 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pvhDV-002AhQ-2P; Sun, 07 May 2023 18:26:33 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Linus Walleij , David Airlie , Daniel Vetter Subject: [PATCH 27/53] drm/mcde: Convert to platform remove callback returning void Date: Sun, 7 May 2023 18:25:50 +0200 Message-Id: <20230507162616.1368908-28-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230507162616.1368908-1-u.kleine-koenig@pengutronix.de> References: <20230507162616.1368908-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2751; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=glMqUiPXRKhwzmEGMHZYlIT1zk+1agyjZyutvvTSAVI=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkV9EDiw6RSRoAQS4Oy8Ou8jEyPh/7AYPwk12ZG MmdeYe0fd6JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZFfRAwAKCRCPgPtYfRL+ Tj2BCACF5c6XZZEqhdkMfsHD44d8Fu3ah9J2f+rTXs3jXNat5loGDsmntb0BU013t4H6vzE9qz/ Xis8V4mCNNlzR4a7M/1EXlJZPIaVc8zw0dj2jIzd+Gh6iJ6o+URcreBWj3q2LtJ2GLoADW1R3/N EYU7/8bJxy8y7uaSnz7SGAtMveOQ+rUQu8bAtsQTzxV3DMsgfpi99sWzb3EsR04yCaUWGeLGZmM cQSh2/0NVioFF+mEHf/Dh1Ra42PGJnZta4cVf8RlPe+FnACGZc7miVc1VjAlOMC4NvFmTy+8AXX Ofiz6ijUkGEDX46e4GAEh5wu+LjfLfm5Zy5vE4Tl0iMxeAUG 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.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kernel@pengutronix.de, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 (mostly) ignored 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. Trivially convert the mcde drm driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Linus Walleij --- drivers/gpu/drm/mcde/mcde_drv.c | 6 ++---- drivers/gpu/drm/mcde/mcde_dsi.c | 6 ++---- 2 files changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c index 4aedb050d2a5..458672d0fb7a 100644 --- a/drivers/gpu/drm/mcde/mcde_drv.c +++ b/drivers/gpu/drm/mcde/mcde_drv.c @@ -448,7 +448,7 @@ static int mcde_probe(struct platform_device *pdev) } -static int mcde_remove(struct platform_device *pdev) +static void mcde_remove(struct platform_device *pdev) { struct drm_device *drm = platform_get_drvdata(pdev); struct mcde *mcde = to_mcde(drm); @@ -457,8 +457,6 @@ static int mcde_remove(struct platform_device *pdev) clk_disable_unprepare(mcde->mcde_clk); regulator_disable(mcde->vana); regulator_disable(mcde->epod); - - return 0; } static const struct of_device_id mcde_of_match[] = { @@ -474,7 +472,7 @@ static struct platform_driver mcde_driver = { .of_match_table = of_match_ptr(mcde_of_match), }, .probe = mcde_probe, - .remove = mcde_remove, + .remove_new = mcde_remove, }; static struct platform_driver *const component_drivers[] = { diff --git a/drivers/gpu/drm/mcde/mcde_dsi.c b/drivers/gpu/drm/mcde/mcde_dsi.c index 9f9ac8699310..db82b38600b2 100644 --- a/drivers/gpu/drm/mcde/mcde_dsi.c +++ b/drivers/gpu/drm/mcde/mcde_dsi.c @@ -1208,14 +1208,12 @@ static int mcde_dsi_probe(struct platform_device *pdev) return component_add(dev, &mcde_dsi_component_ops); } -static int mcde_dsi_remove(struct platform_device *pdev) +static void mcde_dsi_remove(struct platform_device *pdev) { struct mcde_dsi *d = platform_get_drvdata(pdev); component_del(&pdev->dev, &mcde_dsi_component_ops); mipi_dsi_host_unregister(&d->dsi_host); - - return 0; } static const struct of_device_id mcde_dsi_of_match[] = { @@ -1231,5 +1229,5 @@ struct platform_driver mcde_dsi_driver = { .of_match_table = of_match_ptr(mcde_dsi_of_match), }, .probe = mcde_dsi_probe, - .remove = mcde_dsi_remove, + .remove_new = mcde_dsi_remove, };