From patchwork Sat Mar 18 23:54:03 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: 13180038 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 E6C95C761AF for ; Sat, 18 Mar 2023 23:55:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229862AbjCRXzC (ORCPT ); Sat, 18 Mar 2023 19:55:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229756AbjCRXyt (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 3BA8D1B2D1 for ; Sat, 18 Mar 2023 16:54:48 -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 1pdgNq-0004Cx-A1; Sun, 19 Mar 2023 00:54:46 +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 1pdgNp-0056bK-Mr; Sun, 19 Mar 2023 00:54:45 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pdgNp-005zVG-40; Sun, 19 Mar 2023 00:54:45 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Helge Deller , Thomas Zimmermann , Javier Martinez Canillas Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 26/51] video: fbdev: metronomefb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:54:03 +0100 Message-Id: <20230318235428.272091-27-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=1628; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=uvijOtEYTz9wJpcGd8vhuNLjoD+pwsiRbl1kBrYLVAM=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk7EGYbM5itBa5puQAEeVIM7VoardxL72XpAm 4bwquxd+dGJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZOxAAKCRCPgPtYfRL+ TtWzB/0QyHUQPXtvJJ07xP+Cn+iIF7ye2UGjEUeV973hDvnbU1+/41KxPsYq29uC+dmDRg16Fkv uE0m/Hkm+Mo/g8ApgUcUMk0WFPX7FSCqoJAkbena/6pJV0mlDxt5pFnG2qYfSsQkRMOSTQAvXIh juwqe3+Bl7Us3UYVSv77xzbI9J5UxQ0YnMKXBu9/J4ACd1z+M1ApReTKf4x7FS7DEx9BMXno5+G HWhWBS2FHjOcjxrSiPBxls28ERO1Ofp0F9Gq2xInuJ003qnN4Sy/c6NInB6W9R0EMKtMsSKzzqG Eh1TUaXARFu6LPGsEMbJtKQPS0EKK07EE1VHsvcjYxaycWmr 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/metronomefb.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/video/fbdev/metronomefb.c b/drivers/video/fbdev/metronomefb.c index 9fd4bb85d735..bbdbf463f0c8 100644 --- a/drivers/video/fbdev/metronomefb.c +++ b/drivers/video/fbdev/metronomefb.c @@ -744,7 +744,7 @@ static int metronomefb_probe(struct platform_device *dev) return retval; } -static int metronomefb_remove(struct platform_device *dev) +static void metronomefb_remove(struct platform_device *dev) { struct fb_info *info = platform_get_drvdata(dev); @@ -761,12 +761,11 @@ static int metronomefb_remove(struct platform_device *dev) dev_dbg(&dev->dev, "calling release\n"); framebuffer_release(info); } - return 0; } static struct platform_driver metronomefb_driver = { .probe = metronomefb_probe, - .remove = metronomefb_remove, + .remove_new = metronomefb_remove, .driver = { .name = "metronomefb", },