From patchwork Tue Nov 7 09:18:01 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: 742105 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 0D9C4C05022 for ; Tue, 7 Nov 2023 09:20:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233908AbjKGJUp (ORCPT ); Tue, 7 Nov 2023 04:20:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233927AbjKGJUd (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 C1F64113 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 1r0IG4-0000To-Me; 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 1r0IG4-007Fmn-6v; 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 1r0IG3-00ENXP-U1; 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 20/22] fb: omapfb/sharp-ls037v7dw01: Convert to platform remove callback returning void Date: Tue, 7 Nov 2023 10:18:01 +0100 Message-ID: <20231107091740.3924258-21-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=2096; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=oLlKWztgQ/yvbvZLWuFb+P5sTKuar0OzPBryNUb0awE=; b=owEBbAGT/pANAwAKAY+A+1h9Ev5OAcsmYgBlSgDLcfIWbCAOhYblQRLZcn8q4JWB5ADmWE7mH YxLBiREhOyJATIEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZUoAywAKCRCPgPtYfRL+ TreAB/iadu6EKi8XGrFpkJgNKSZvvnVYOTIgQqTFzJzyv6RYpx6bEpK1xboVWXKlwLvROwpBmgk NeVTW8ed0DxLJWo0qrD0EULtSWSnQ9T4/vLfyQ8qjxFS7YSjF07BbKMBKwJZwSWrSKlCcMm/HWI tvt57wQnp0u8Xf5MXgAzFhgswErytk0jSQxAzZTVhuPAwh0nxJ6yJFP9eZdO1ncwJwQeHmQplWC SNFpNjkbXkovXdhfIt8licHFWRJi6+x8DnieOpxOJs6IOrpCpLV2vcMBt0Yy9bH6U3fJOluvrB4 Ju7MaMvqwFy67lSVaCErd7OoaI6DfmCp9T33Fj3FqwANUd4= 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 --- .../fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c index d228d74f3bd5..e37268cf8dca 100644 --- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c +++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sharp-ls037v7dw01.c @@ -292,7 +292,7 @@ static int sharp_ls_probe(struct platform_device *pdev) return r; } -static int sharp_ls_remove(struct platform_device *pdev) +static void sharp_ls_remove(struct platform_device *pdev) { struct panel_drv_data *ddata = platform_get_drvdata(pdev); struct omap_dss_device *dssdev = &ddata->dssdev; @@ -304,8 +304,6 @@ static int sharp_ls_remove(struct platform_device *pdev) sharp_ls_disconnect(dssdev); omap_dss_put_device(in); - - return 0; } static const struct of_device_id sharp_ls_of_match[] = { @@ -317,7 +315,7 @@ MODULE_DEVICE_TABLE(of, sharp_ls_of_match); static struct platform_driver sharp_ls_driver = { .probe = sharp_ls_probe, - .remove = sharp_ls_remove, + .remove_new = sharp_ls_remove, .driver = { .name = "panel-sharp-ls037v7dw01", .of_match_table = sharp_ls_of_match,