From patchwork Sat Mar 18 23:54:15 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: 13180048 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 160D5C7618A for ; Sat, 18 Mar 2023 23:55:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229778AbjCRXzI (ORCPT ); Sat, 18 Mar 2023 19:55:08 -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 S229808AbjCRXyx (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 179041C304 for ; Sat, 18 Mar 2023 16:54:50 -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-0004H7-3T; 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-0056cK-El; 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 1pdgNr-005zW2-K5; Sun, 19 Mar 2023 00:54:47 +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 38/51] video: fbdev: sh7760fb: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:54:15 +0100 Message-Id: <20230318235428.272091-39-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=1793; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=XznMwAdgwwk+HnRVAZt9IgzfQjXJQ2pDe2f7YYLAumY=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk7qUqUstzWfc26Xmtt+3hAjCmUp0ta8LtRb9 WV5iaCLUDaJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZO6gAKCRCPgPtYfRL+ TiR3B/wKrldHvDlKHRwCTsPLTLqcG9kTUxwbVIs8v0unagjU7VW/oxcCMb24dhkGmQjAYusWgqt JEvkyyv1QAJgzRlF+pKNLRi3cXaH4ku0NTlr8u2UY90u8UnGotnjYU2QthgfXZCrdefgWKvOzmY t7xBVJ3r8CUGSQlSw/94XYoUQmQXhwpju4tISK4ZUQe9B5q+WEQMPytq+iY8JfD1+QTKh2nE1Zl TkV+84HJl7f85oPNYCCKWVjWzwqIHjbKqCO3Ij8oR1HTdA09UROgCcp45hrFexAMmc99YNks3zM gsJd+wTpdhvPmzqLKdKc4A6TA8MNpul+3n+IOHrMvsXRPUKi 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/sh7760fb.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/sh7760fb.c b/drivers/video/fbdev/sh7760fb.c index 5978a8921232..768011bdb430 100644 --- a/drivers/video/fbdev/sh7760fb.c +++ b/drivers/video/fbdev/sh7760fb.c @@ -554,7 +554,7 @@ static int sh7760fb_probe(struct platform_device *pdev) return ret; } -static int sh7760fb_remove(struct platform_device *dev) +static void sh7760fb_remove(struct platform_device *dev) { struct fb_info *info = platform_get_drvdata(dev); struct sh7760fb_par *par = info->par; @@ -568,8 +568,6 @@ static int sh7760fb_remove(struct platform_device *dev) iounmap(par->base); release_mem_region(par->ioarea->start, resource_size(par->ioarea)); framebuffer_release(info); - - return 0; } static struct platform_driver sh7760_lcdc_driver = { @@ -577,7 +575,7 @@ static struct platform_driver sh7760_lcdc_driver = { .name = "sh7760-lcdc", }, .probe = sh7760fb_probe, - .remove = sh7760fb_remove, + .remove_new = sh7760fb_remove, }; module_platform_driver(sh7760_lcdc_driver);