From patchwork Sat Mar 18 23:53:56 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: 13180031 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 6A408C74A5B for ; Sat, 18 Mar 2023 23:54:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229845AbjCRXy5 (ORCPT ); Sat, 18 Mar 2023 19:54:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47046 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229671AbjCRXys (ORCPT ); Sat, 18 Mar 2023 19:54:48 -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 D6A951BAD1 for ; Sat, 18 Mar 2023 16:54:46 -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 1pdgNp-00048o-5q; Sun, 19 Mar 2023 00:54:45 +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 1pdgNo-0056al-CU; Sun, 19 Mar 2023 00:54:44 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pdgNn-005zUo-M4; Sun, 19 Mar 2023 00:54:43 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Helge Deller Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 19/51] video: fbdev: grvga: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:53:56 +0100 Message-Id: <20230318235428.272091-20-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=1667; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=w3PbzBb6n2nqBuV8qZCtoHtBJv59krNA/XZ/KJwDO5o=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk68IZzDWqm6ttd7b9/mkNOCsDB+EdeM2L5v5 MKeZTADV12JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZOvAAKCRCPgPtYfRL+ TmGtB/0VA/sthxPkFudCxTwFIwGFs6hZ7ntBJzqtUyhX7UoYNQsX9+pJelo10q1gneCkD9IRP0G nRD8FhduwIi2qi+GhojDJA2TophuuKYDYWcPVzaqrdfBQeibNyT5ipM1xGA8DZyAJEUnMCRBu2e svj3Jqgd4diQWg/VNx7pATkiQ9gibi+6TrGRDiymjJv12Frok9kRbPSC4CgR18/0HuGUAj3QPWu q9Ed06xLJtnEnaBtP+QQcbclO+g+toGkFnO7pMT39AZhdQ3R8vnPkoazAtITRmu/MqnbNA4HN1e pfukF3gHEepnFtqYkCI/kpwBWXx5SMeCg1NijYroKmOAOoC3 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/grvga.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/grvga.c b/drivers/video/fbdev/grvga.c index 24818b276241..9aa15be29ea9 100644 --- a/drivers/video/fbdev/grvga.c +++ b/drivers/video/fbdev/grvga.c @@ -504,7 +504,7 @@ static int grvga_probe(struct platform_device *dev) return retval; } -static int grvga_remove(struct platform_device *device) +static void grvga_remove(struct platform_device *device) { struct fb_info *info = dev_get_drvdata(&device->dev); struct grvga_par *par; @@ -524,8 +524,6 @@ static int grvga_remove(struct platform_device *device) framebuffer_release(info); } - - return 0; } static struct of_device_id svgactrl_of_match[] = { @@ -545,7 +543,7 @@ static struct platform_driver grvga_driver = { .of_match_table = svgactrl_of_match, }, .probe = grvga_probe, - .remove = grvga_remove, + .remove_new = grvga_remove, }; module_platform_driver(grvga_driver);