From patchwork Sat Mar 18 23:53:44 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: 13180021 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 3FD4BC761A6 for ; Sat, 18 Mar 2023 23:54:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229753AbjCRXyt (ORCPT ); Sat, 18 Mar 2023 19:54:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229579AbjCRXyq (ORCPT ); Sat, 18 Mar 2023 19:54:46 -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 8BC7C1B2D1 for ; Sat, 18 Mar 2023 16:54:44 -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 1pdgNm-00042X-Rs; Sun, 19 Mar 2023 00:54:42 +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 1pdgNm-0056Zu-7Q; Sun, 19 Mar 2023 00:54:42 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pdgNl-005zU0-9Y; Sun, 19 Mar 2023 00:54:41 +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 07/51] video: fbdev: cg14: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:53:44 +0100 Message-Id: <20230318235428.272091-8-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=1662; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=X0Npv7RIU0uA2nb6KinZ087YzI071OmR2xLaSkvunQ8=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk6upk/EfhFiZUCshtqXI1vfmJ+gAefNWjFGW QwRzCKoPpaJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZOrgAKCRCPgPtYfRL+ ThHDCAC2L8hfVXL+s7vGc1gG+mGRxwF9RkClxK2YQb+kcEuHim8TjWbIQ1F6doHpmvHYlbMGnNP DtUB7O+ZOKdJiZQJa1iYulaZOMgytliKY7EtCDtdKxJolZozJFlc+l634fW3WPWwX9mygwoLk+U 8hQSUwtKTAoJfGIfGnUs4mGlavbD0BMyS0ImYuENWLTU+qZJUmSOdIw/aH5rejDcopX5uQta9iu TivFZo78T4PbcusFTwfAg4AUsJnrgu+R88BitvSAGCi6cYiczTxJOens64qt8yrTQxg0JOgB2lv Zt41Iq0V2tBCw5pjrfeX/vUl8oxbdyiTa8vrKHJOESZ83jNs 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/cg14.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/cg14.c b/drivers/video/fbdev/cg14.c index 6a745eb46ca1..a028ede39c12 100644 --- a/drivers/video/fbdev/cg14.c +++ b/drivers/video/fbdev/cg14.c @@ -569,7 +569,7 @@ static int cg14_probe(struct platform_device *op) return err; } -static int cg14_remove(struct platform_device *op) +static void cg14_remove(struct platform_device *op) { struct fb_info *info = dev_get_drvdata(&op->dev); struct cg14_par *par = info->par; @@ -580,8 +580,6 @@ static int cg14_remove(struct platform_device *op) cg14_unmap_regs(op, info, par); framebuffer_release(info); - - return 0; } static const struct of_device_id cg14_match[] = { @@ -598,7 +596,7 @@ static struct platform_driver cg14_driver = { .of_match_table = cg14_match, }, .probe = cg14_probe, - .remove = cg14_remove, + .remove_new = cg14_remove, }; static int __init cg14_init(void)