From patchwork Tue Nov 7 09:18:02 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: 742106 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 97BB0C04E83 for ; Tue, 7 Nov 2023 09:20:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233779AbjKGJUn (ORCPT ); Tue, 7 Nov 2023 04:20:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233910AbjKGJUd (ORCPT ); Tue, 7 Nov 2023 04:20:33 -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 D956D10C7 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 1r0IG4-0000Tx-Qy; 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 1r0IG4-007Fmr-Db; Tue, 07 Nov 2023 10:20:28 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r0IG4-00ENXU-4e; Tue, 07 Nov 2023 10:20:28 +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 21/22] fb: omapfb/tfp410: Convert to platform remove callback returning void Date: Tue, 7 Nov 2023 10:18:02 +0100 Message-ID: <20231107091740.3924258-22-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=2032; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=cTpvFEXEs/xZYr1YFQ7IKksKDwg1iZTcDxeI9sqrcDQ=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlSgDMg2LvECF65IAiO+tomv5dbeWO3rfrD9h8Z ggz1aDrs3qJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZUoAzAAKCRCPgPtYfRL+ Tu43B/42n8HcVLcRKw5sDZCT2caPWf1vkH6K7OCftltrRjx5E4Co1QgciCT7uUqefRo/QIONEcB bU3FLO7PeisBjFXRm1QrSvKA0b3uA+uImrUaPkwvYSTX6cu/TeArZyO3Ibgk+W6y0n+JEhIQMYl 9fUdVXkMZioARk/sF09Vi9XUs4GEOc8OK+vWHg96owboXU9v1TkcGiYjPD+ttXdFdFuTHonpNDs OOOHTm77rNf9mXioS8AxVo6jiO1i9DqtYNDLnzVcoEWuUTeP4NdP8ZOlDkzUy3Z7Pi/je3701y7 4hVcYwb+QVXedaP3SusTOnVe6HKfEF0g6z+THbmQGhwe8Bho 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-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 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/encoder-tfp410.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tfp410.c b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tfp410.c index 6aa21afc8b21..c8aca4592949 100644 --- a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tfp410.c +++ b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tfp410.c @@ -217,7 +217,7 @@ static int tfp410_probe(struct platform_device *pdev) return r; } -static int tfp410_remove(struct platform_device *pdev) +static void tfp410_remove(struct platform_device *pdev) { struct panel_drv_data *ddata = platform_get_drvdata(pdev); struct omap_dss_device *dssdev = &ddata->dssdev; @@ -234,8 +234,6 @@ static int tfp410_remove(struct platform_device *pdev) tfp410_disconnect(dssdev, dssdev->dst); omap_dss_put_device(in); - - return 0; } static const struct of_device_id tfp410_of_match[] = { @@ -247,7 +245,7 @@ MODULE_DEVICE_TABLE(of, tfp410_of_match); static struct platform_driver tfp410_driver = { .probe = tfp410_probe, - .remove = tfp410_remove, + .remove_new = tfp410_remove, .driver = { .name = "tfp410", .of_match_table = tfp410_of_match,