From patchwork Sat Mar 18 23:54:08 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: 665387 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 8BE48C7619A for ; Sat, 18 Mar 2023 23:55:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229737AbjCRXzD (ORCPT ); Sat, 18 Mar 2023 19:55:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229759AbjCRXyu (ORCPT ); Sat, 18 Mar 2023 19:54:50 -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 3F6C819699 for ; Sat, 18 Mar 2023 16:54:49 -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 1pdgNr-0004F6-Ky; Sun, 19 Mar 2023 00:54:47 +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 1pdgNr-0056bm-0a; Sun, 19 Mar 2023 00:54:47 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pdgNq-005zVZ-6L; Sun, 19 Mar 2023 00:54:46 +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 31/51] video: fbdev: p9100: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:54:08 +0100 Message-Id: <20230318235428.272091-32-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=1716; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=7EdLunVGr5suPqaCLWBHwHgA+gHggLCAuloDzn875wE=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk7Jl48h8/QTTCSlYMrUz2Lr/uz4SJyzle+/y cVqLZNDkAOJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZOyQAKCRCPgPtYfRL+ ToszCAC0FcFwFs1f9zShRUugPSqc+zWnA55zr7ys+GouolParjElJVQvUjQnyh4ttY9PKJyq3WP 1rG6WayfHFviSERmgGr3g4TOWEoA5myu4yRo+LCdOsa+EnEdJuYsCN6hQm16dInqliCvYfC1hsG zcdwPQBk0ZD8i8tYj5HsCbOr8sbVwAg6Tnst8v1cWli6qrgWXDpstAOA2OK/kLahJRM+aGyZuyX 4H46KfchGHb6i13hNana2+VvOcwayrGJMMLjXuCIi0g8oIJNPq9Mr9Gswi4poJ491CDQtoUdv+2 Mg2vVChGPH3GmDc2OlbSYAjk7c40bfOQ13xBAxqaZFFItIPX 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/p9100.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/p9100.c b/drivers/video/fbdev/p9100.c index 4e88a0a195ad..3e44f9516318 100644 --- a/drivers/video/fbdev/p9100.c +++ b/drivers/video/fbdev/p9100.c @@ -327,7 +327,7 @@ static int p9100_probe(struct platform_device *op) return err; } -static int p9100_remove(struct platform_device *op) +static void p9100_remove(struct platform_device *op) { struct fb_info *info = dev_get_drvdata(&op->dev); struct p9100_par *par = info->par; @@ -339,8 +339,6 @@ static int p9100_remove(struct platform_device *op) of_iounmap(&op->resource[2], info->screen_base, info->fix.smem_len); framebuffer_release(info); - - return 0; } static const struct of_device_id p9100_match[] = { @@ -357,7 +355,7 @@ static struct platform_driver p9100_driver = { .of_match_table = p9100_match, }, .probe = p9100_probe, - .remove = p9100_remove, + .remove_new = p9100_remove, }; static int __init p9100_init(void)