From patchwork Sun May 7 16:26:02 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: 13233775 X-Patchwork-Delegate: kieran@bingham.xyz 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE5C1C77B7C for ; Sun, 7 May 2023 16:26:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229460AbjEGQ0q (ORCPT ); Sun, 7 May 2023 12:26:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230399AbjEGQ0p (ORCPT ); Sun, 7 May 2023 12:26:45 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6057312491 for ; Sun, 7 May 2023 09:26:42 -0700 (PDT) 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 1pvhDb-0002Gp-PX; Sun, 07 May 2023 18:26:39 +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 1pvhDb-001nES-2t; Sun, 07 May 2023 18:26:39 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pvhDZ-002AiD-SI; Sun, 07 May 2023 18:26:37 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Laurent Pinchart , Kieran Bingham , David Airlie , Daniel Vetter Cc: dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 39/53] drm/shmobile: Convert to platform remove callback returning void Date: Sun, 7 May 2023 18:26:02 +0200 Message-Id: <20230507162616.1368908-40-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=1892; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=0LIMDYZylv4By3Zcd95xcK7hynz+BYh5LZWLCVI++98=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkV9ERnLzR9Hck/Cu+47E3lEch5wZJ9TyTr8X2p kgclAcd6yiJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZFfREQAKCRCPgPtYfRL+ TlA3CAClwSGs9ml9DPUp02Ls/ghuFx91jYYEWPLyyLGzCKTrgQxL5jWfPZjUnC08o/CFZwtfI4N SOr00dLArPdoaIJS/uqzjrXdEEXBY9o0oojtbm14X1LFbZSvX3kfCMNA8P2OGdSSxT5UjzNHwP5 3+ma+aMEo3xpGlcyskRkMithGwYRvM/WGY8g4FDPnMnBVsCBjOO1aEe5y1TELZNNs7jTyAbJPcN dQtn7zP6pxL4CWuKQuA7qSfH9TLleb+93swHdeXJMHC2VJjQde2V6+fA5cne1p5dYYy05B7QGpq dlB5MshmxQxlN75Kxs254qQbMo92TQmC3BONuKGh342uwdgU 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: linux-renesas-soc@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@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 (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 this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Reviewed-by: Laurent Pinchart Reviewed-by: Geert Uytterhoeven --- drivers/gpu/drm/shmobile/shmob_drm_drv.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c index faacfee24763..fa32115320ca 100644 --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c +++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c @@ -171,7 +171,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(shmob_drm_pm_ops, * Platform driver */ -static int shmob_drm_remove(struct platform_device *pdev) +static void shmob_drm_remove(struct platform_device *pdev) { struct shmob_drm_device *sdev = platform_get_drvdata(pdev); struct drm_device *ddev = sdev->ddev; @@ -180,8 +180,6 @@ static int shmob_drm_remove(struct platform_device *pdev) drm_kms_helper_poll_fini(ddev); free_irq(sdev->irq, ddev); drm_dev_put(ddev); - - return 0; } static int shmob_drm_probe(struct platform_device *pdev) @@ -285,7 +283,7 @@ static int shmob_drm_probe(struct platform_device *pdev) static struct platform_driver shmob_drm_platform_driver = { .probe = shmob_drm_probe, - .remove = shmob_drm_remove, + .remove_new = shmob_drm_remove, .driver = { .name = "shmob-drm", .pm = pm_sleep_ptr(&shmob_drm_pm_ops),