From patchwork Sat Mar 18 23:53:40 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: 13180018 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 95F9BC76196 for ; Sat, 18 Mar 2023 23:54:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229488AbjCRXyr (ORCPT ); Sat, 18 Mar 2023 19:54:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229553AbjCRXyp (ORCPT ); Sat, 18 Mar 2023 19:54:45 -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 CE1E51ACE7 for ; Sat, 18 Mar 2023 16:54:43 -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 1pdgNl-00041f-S0; Sun, 19 Mar 2023 00:54:41 +0100 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 1pdgNl-0056ZU-6P; Sun, 19 Mar 2023 00:54:41 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pdgNk-005zTk-HK; Sun, 19 Mar 2023 00:54:40 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Helge Deller , Yihao Han Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 03/51] video: fbdev: au1100fb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:53:40 +0100 Message-Id: <20230318235428.272091-4-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230318235428.272091-1-u.kleine-koenig@pengutronix.de> References: <20230318235428.272091-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1791; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=ZeRUp9iq5eSAosiqXZU37Mo+K1kfkuJKRH1GA53X+Kc=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk6ptVxK7/W0lh9UQPshBtNRz4P4SiXQ15mdK tOjBYKIhKKJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZOqQAKCRCPgPtYfRL+ Tq95B/sES7Yc4ueVz4bgjKtbhssNqor7Pti7Qm2Yj0q/TFt0DJfQpBm2Lnob2ZouxLTjMUQ6bfy 68UWIKd+DgEG+fHHNzAY11qL/w4Am4LKcMb+tsPuYMZIVo1rG2SATkziuwvYuWXiUeSrdQZHJJ5 bBUn1tMBPVc8Eg+i2XtfXENKA7BkFkovY+8rEFKVGlyijWWArNxWEL/eHdpclz47PhSffaDcvOR 397eH9cbXQy1x6zy6PJ2Aev+EWNaK2Hyzimr2C8tfTo1J+0rI1RIdTkMknOqyJXCupjct1JBX7W 0DQhBNcj59Pf8+8vEtQx0TDwp3LlCD05F63RxUw9nQ7GF44Q 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-fbdev@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@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 --- drivers/video/fbdev/au1100fb.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/video/fbdev/au1100fb.c b/drivers/video/fbdev/au1100fb.c index cd27e3b81bb8..cb317398e71a 100644 --- a/drivers/video/fbdev/au1100fb.c +++ b/drivers/video/fbdev/au1100fb.c @@ -520,7 +520,7 @@ static int au1100fb_drv_probe(struct platform_device *dev) return -ENODEV; } -int au1100fb_drv_remove(struct platform_device *dev) +void au1100fb_drv_remove(struct platform_device *dev) { struct au1100fb_device *fbdev = NULL; @@ -540,8 +540,6 @@ int au1100fb_drv_remove(struct platform_device *dev) clk_disable_unprepare(fbdev->lcdclk); clk_put(fbdev->lcdclk); } - - return 0; } #ifdef CONFIG_PM @@ -590,8 +588,8 @@ static struct platform_driver au1100fb_driver = { .name = "au1100-lcd", }, .probe = au1100fb_drv_probe, - .remove = au1100fb_drv_remove, - .suspend = au1100fb_drv_suspend, + .remove_new = au1100fb_drv_remove, + .suspend = au1100fb_drv_suspend, .resume = au1100fb_drv_resume, }; module_platform_driver(au1100fb_driver);