From patchwork Sat Mar 18 23:54:22 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: 13180054 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 D7E0CC7618A for ; Sat, 18 Mar 2023 23:55:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229878AbjCRXzL (ORCPT ); Sat, 18 Mar 2023 19:55:11 -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 S229553AbjCRXyz (ORCPT ); Sat, 18 Mar 2023 19:54:55 -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 E43A61B2CF for ; Sat, 18 Mar 2023 16:54:54 -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 1pdgNv-0004Oi-QK; Sun, 19 Mar 2023 00:54:51 +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 1pdgNu-0056cw-4o; Sun, 19 Mar 2023 00:54:50 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pdgNt-005zWU-4L; Sun, 19 Mar 2023 00:54:49 +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 45/51] video: fbdev: vfb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:54:22 +0100 Message-Id: <20230318235428.272091-46-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=1505; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=J3g2K4GMb81lpfP0l/rZbwcFlTXYkFbJI8iSz7+fgko=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk8QQQyh90Gn9MCfsNvSK2H/urQWL0MtmPpl9 Qu3fEKUsIuJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZPEAAKCRCPgPtYfRL+ TpbZB/4hMYWp7j35SdnRXPioguUdSxW7csS8ccr2l/XryI5c9EQldOebbYsWJkt7hTLIegnBdcN yCw+8axg3P8FhztvGuaZJKvHr9D4tEu86qSEqAwxoTWmnhTlFMencFte3EVl01m4TgoypckM48S 0GehJHcSiXrZKCp7ixP4ckk7ltRKz7rP6TdV54QmwZOcXH4nVTVD4cJwKVpnXzDRHzmJ443yp1p OO7nWXd92pobHR18aPZvTTcLHjeynI9e0ri1KKVEbwhlv0OaVXGyC67NL0Mq6f7cdGjwLFCFaHm Z4dXMf2Oji3UJxgm9HFWiP5TEtjJ8x3wM+lg6zFnQrEQCpRV 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/vfb.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/video/fbdev/vfb.c b/drivers/video/fbdev/vfb.c index 95d3c59867d0..1a2514d564fc 100644 --- a/drivers/video/fbdev/vfb.c +++ b/drivers/video/fbdev/vfb.c @@ -479,7 +479,7 @@ static int vfb_probe(struct platform_device *dev) return retval; } -static int vfb_remove(struct platform_device *dev) +static void vfb_remove(struct platform_device *dev) { struct fb_info *info = platform_get_drvdata(dev); @@ -489,12 +489,11 @@ static int vfb_remove(struct platform_device *dev) fb_dealloc_cmap(&info->cmap); framebuffer_release(info); } - return 0; } static struct platform_driver vfb_driver = { .probe = vfb_probe, - .remove = vfb_remove, + .remove_new = vfb_remove, .driver = { .name = "vfb", },