From patchwork Sat Mar 18 23:54:17 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: 665383 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 95E11C761AF for ; Sat, 18 Mar 2023 23:55:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229782AbjCRXzJ (ORCPT ); Sat, 18 Mar 2023 19:55:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229816AbjCRXyx (ORCPT ); Sat, 18 Mar 2023 19:54:53 -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 8B5A31B2D1 for ; Sat, 18 Mar 2023 16:54:51 -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 1pdgNt-0004I0-D9; Sun, 19 Mar 2023 00:54:49 +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 1pdgNs-0056cQ-PI; Sun, 19 Mar 2023 00:54:48 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pdgNs-005zWB-0D; Sun, 19 Mar 2023 00:54:48 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Hans de Goede , Helge Deller Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 40/51] video: fbdev: simplefb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:54:17 +0100 Message-Id: <20230318235428.272091-41-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=1650; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=b4b607FxowyUjUELxWtsjxaitDLIUEa06hb9gkP9mSc=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk73LG2ivyBvUeI2TvBAPWqclWkuHiP0FKaha +PCXHaV0mOJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZO9wAKCRCPgPtYfRL+ Tr4RB/4kuWaOWK8zWzpwc1wWDQyXDpl5AXJv4IVIPon5Cx/RIfusbmTZNsEe9l6H6+sH0zMcvjl 73SoDz42U7bEwhJk1A2EGlYzXbbUpViaEZeXJMmB1+3MyZv6Jn8wcOmgtBh7KIX1l2tTjE0vnX3 B38YGR37Q0E0Noe5Hp5EdYh2GI+p3in8R1OnItxsT769rhCZqL07fDH/kT6o3SAG4j9m238jddq 6Ew3lwjr7jyo9CBuGKvhN8WcjYf2GmavccPTih7sRPvaXzGDFe21xo8CsobuqAFuZiXPKpAIGNP he9t/CEadssTabS21ncaw4Q/6mca5HlhOuhkeCuEyYEKaFhY 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/simplefb.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c index 10d71879d340..e4a13871bca6 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -538,14 +538,12 @@ static int simplefb_probe(struct platform_device *pdev) return ret; } -static int simplefb_remove(struct platform_device *pdev) +static void simplefb_remove(struct platform_device *pdev) { struct fb_info *info = platform_get_drvdata(pdev); /* simplefb_destroy takes care of info cleanup */ unregister_framebuffer(info); - - return 0; } static const struct of_device_id simplefb_of_match[] = { @@ -560,7 +558,7 @@ static struct platform_driver simplefb_driver = { .of_match_table = simplefb_of_match, }, .probe = simplefb_probe, - .remove = simplefb_remove, + .remove_new = simplefb_remove, }; module_platform_driver(simplefb_driver);