From patchwork Sat Mar 18 23:53:51 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: 13180037 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 72A71C77B60 for ; Sat, 18 Mar 2023 23:55:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229562AbjCRXzB (ORCPT ); Sat, 18 Mar 2023 19:55:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47068 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229747AbjCRXyt (ORCPT ); Sat, 18 Mar 2023 19:54:49 -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 F11F81B2CF for ; Sat, 18 Mar 2023 16:54:47 -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-00045J-Um; 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 1pdgNn-0056aP-Cp; Sun, 19 Mar 2023 00:54:43 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pdgNm-005zUR-LQ; Sun, 19 Mar 2023 00:54:42 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Helge Deller , Gaosheng Cui Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 14/51] video: fbdev: ep93xx-fb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:53:51 +0100 Message-Id: <20230318235428.272091-15-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=1610; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=FSWnvts299BKHZI7up4omJvQR3NHtI0HbWVYCbBSojM=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk622CfaGoZVNlhC9mGcoliHjKXqSMpdBQrXi L8HdzQxjdOJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZOtgAKCRCPgPtYfRL+ Tp7fB/9/bKaj2OKFsPDnQQ1exQ3XxOr4ZCK+aysV2YKXV6W2PtR46vaRC3QKFxh+IfO804bhrH0 Kx9BUohwJNSxMWWE1sBWwa5wADHxbfPVDFHHamRFCIcrKdwXaTMHEAkex/R3z/8ptAnPr4JMgFZ ARvZBsu/VQrUpSIFRAxMEYB/lgPdoIb9+DUgqex01LQwx/HK+BDgSsWFalGqe7cn9RigyaekYtU mYOVSilOoGM3qXEeiBPjHh/ONT847M2N0TK35ZJvDYyQ1pryaxw4Xksyl8JAIpNz0zcN9RV45yJ A2cG2hwi4kTBv8J+PHvvzKneYyYhyw/WEbe0GM9nWCw9+EDd 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/ep93xx-fb.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/ep93xx-fb.c b/drivers/video/fbdev/ep93xx-fb.c index 305f1587bd89..94fe52928be2 100644 --- a/drivers/video/fbdev/ep93xx-fb.c +++ b/drivers/video/fbdev/ep93xx-fb.c @@ -573,7 +573,7 @@ static int ep93xxfb_probe(struct platform_device *pdev) return err; } -static int ep93xxfb_remove(struct platform_device *pdev) +static void ep93xxfb_remove(struct platform_device *pdev) { struct fb_info *info = platform_get_drvdata(pdev); struct ep93xx_fbi *fbi = info->par; @@ -587,13 +587,11 @@ static int ep93xxfb_remove(struct platform_device *pdev) fbi->mach_info->teardown(pdev); kfree(info); - - return 0; } static struct platform_driver ep93xxfb_driver = { .probe = ep93xxfb_probe, - .remove = ep93xxfb_remove, + .remove_new = ep93xxfb_remove, .driver = { .name = "ep93xx-fb", },