From patchwork Sat Mar 18 23:53:59 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: 13180032 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 4BE54C7618A for ; Sat, 18 Mar 2023 23:54:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229671AbjCRXy6 (ORCPT ); Sat, 18 Mar 2023 19:54:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229737AbjCRXys (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 4E1CD1C58C 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-00049i-JX; 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-0056b1-Tb; 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 1pdgNo-005zUz-8a; Sun, 19 Mar 2023 00:54:44 +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 22/51] video: fbdev: hitfb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:53:59 +0100 Message-Id: <20230318235428.272091-23-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=1635; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=B1BEIthHKkUU2FohTtSpJ1Cp74UkEuBDnvaDm3hAXWk=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk6/M1yTePdIx3RkjpiYVyoZO8FOvG9Ppl4cr W9mYOHNWgWJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZOvwAKCRCPgPtYfRL+ TmGhB/9K0MoABZSO2oV/TZgaQmhf1aQsI4Mrkslg+46xpZyyVzGYT2DelA6e6eqKvAdh66wG9Q1 wNLlYyYj3g+0M7m94TthWrnbGP8vjhF2tYsUKH+FQplqDk97H6Kdu9n+ew426+lsJzxEwbKxO3e Qv/QbEQGpuzNDeHMnlcqjj4i/vsKB0klG+WFYcRzDOLNE83G3bacBjHhsZw8KbO9o5gEDP9MWIl m6SBClAURz/1TfCAJjSEkIwEIkJVYrIQAQMOq7oQjs1y1BD1Ab6NM2fOcqqnMLh9QUJNSLSyjJg MX8il/k6fdEsUVhz+iMR9KI0dV/1S/ciFmKiq39NbDk7JvfS 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/hitfb.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/hitfb.c b/drivers/video/fbdev/hitfb.c index bbb0f1d953cc..3033f5056976 100644 --- a/drivers/video/fbdev/hitfb.c +++ b/drivers/video/fbdev/hitfb.c @@ -415,15 +415,13 @@ static int hitfb_probe(struct platform_device *dev) return ret; } -static int hitfb_remove(struct platform_device *dev) +static void hitfb_remove(struct platform_device *dev) { struct fb_info *info = platform_get_drvdata(dev); unregister_framebuffer(info); fb_dealloc_cmap(&info->cmap); framebuffer_release(info); - - return 0; } static int hitfb_suspend(struct device *dev) @@ -460,7 +458,7 @@ static const struct dev_pm_ops hitfb_dev_pm_ops = { static struct platform_driver hitfb_driver = { .probe = hitfb_probe, - .remove = hitfb_remove, + .remove_new = hitfb_remove, .driver = { .name = "hitfb", .pm = &hitfb_dev_pm_ops,