From patchwork Tue Nov 7 09:17:59 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: 13448086 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 7A4D4C07208 for ; Tue, 7 Nov 2023 09:20:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233933AbjKGJUj (ORCPT ); Tue, 7 Nov 2023 04:20:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233882AbjKGJUc (ORCPT ); Tue, 7 Nov 2023 04:20:32 -0500 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 12CCCD7C for ; Tue, 7 Nov 2023 01:20:30 -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 1r0IG4-0000Ss-8B; Tue, 07 Nov 2023 10:20:28 +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 1r0IG3-007Fmf-RF; Tue, 07 Nov 2023 10:20:27 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r0IG3-00ENXI-I9; Tue, 07 Nov 2023 10:20:27 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Helge Deller Cc: Dmitry Torokhov , linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 18/22] fb: omapfb/hdmi: Convert to platform remove callback returning void Date: Tue, 7 Nov 2023 10:17:59 +0100 Message-ID: <20231107091740.3924258-19-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231107091740.3924258-1-u.kleine-koenig@pengutronix.de> References: <20231107091740.3924258-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2023; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=xWbGIn+BzZqEtH7/bA8op5YgNyNIlQGBx+Rz6eesPWY=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlSgDJGCKv77wwzS97/yWuJ2zcnnNtRXoiTXA4R BSD6BzpCXCJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZUoAyQAKCRCPgPtYfRL+ TvCzB/0YqUTNHVj8AZjj7ytJ0MsANp3wXVcTnsnKqrxJmMZXtEkqFe55RIao2D3pU62JMQj64ID x2EH8Oj750FmnzxFhzk9ZDsSBqdans3FeOQuWsIw/BqtJhWQeYsdI8ECl964s/R8rQW/Sx8gzZJ kpkdoFCoj3Ri1UVcuTYEpjDeQMf59qCoZZJWi5PnkiyZYjwM5iHnrbIJEgh6rCppsNIaoHDyJdR JE/+h/KaTNQ4fWsZjj297E0lWSKoWd0pJjdCPF3JFHkMXWTkRi06h+V8orgGFWC9E4HAJgPscEH SSYRfqvNlfb4fBkO7ImWXApN/JCm8GLUjMndfUSOWAtRmnkB 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-omap@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@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/video/fbdev/omap2/omapfb/displays/connector-hdmi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/omap2/omapfb/displays/connector-hdmi.c b/drivers/video/fbdev/omap2/omapfb/displays/connector-hdmi.c index f76664c69481..b862a32670ae 100644 --- a/drivers/video/fbdev/omap2/omapfb/displays/connector-hdmi.c +++ b/drivers/video/fbdev/omap2/omapfb/displays/connector-hdmi.c @@ -249,7 +249,7 @@ static int hdmic_probe(struct platform_device *pdev) return r; } -static int hdmic_remove(struct platform_device *pdev) +static void hdmic_remove(struct platform_device *pdev) { struct panel_drv_data *ddata = platform_get_drvdata(pdev); struct omap_dss_device *dssdev = &ddata->dssdev; @@ -261,8 +261,6 @@ static int hdmic_remove(struct platform_device *pdev) hdmic_disconnect(dssdev); omap_dss_put_device(in); - - return 0; } static const struct of_device_id hdmic_of_match[] = { @@ -274,7 +272,7 @@ MODULE_DEVICE_TABLE(of, hdmic_of_match); static struct platform_driver hdmi_connector_driver = { .probe = hdmic_probe, - .remove = hdmic_remove, + .remove_new = hdmic_remove, .driver = { .name = "connector-hdmi", .of_match_table = hdmic_of_match,