From patchwork Sat Mar 18 23:54:11 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: 13180046 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 B9B3AC77B61 for ; Sat, 18 Mar 2023 23:55:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229756AbjCRXzH (ORCPT ); Sat, 18 Mar 2023 19:55:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47068 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229788AbjCRXyw (ORCPT ); Sat, 18 Mar 2023 19:54:52 -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 5F93920563 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 1pdgNs-0004Fq-4J; Sun, 19 Mar 2023 00:54:48 +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-0056bz-Gh; 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-005zVl-PM; Sun, 19 Mar 2023 00:54:46 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Helge Deller , Hyunwoo Kim , Yang Yingliang Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 34/51] video: fbdev: pxa3xx-gcu: Convert to platform remove callback returning void Date: Sun, 19 Mar 2023 00:54:11 +0100 Message-Id: <20230318235428.272091-35-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=1870; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=JKZ6IR3L4a2OLi88lDwQKr+g94Zq3ULQOY7FNOxmM6k=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkFk7SqKxd9OSiw2r2mgOM6kB6pXEOTBKefwZFB qJ0blCG4DGJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBZO0gAKCRCPgPtYfRL+ TuKYB/sHCEAh6G/pHcfbnMaftJih/j0NrF+Qlm2SELDE0dmuJYOKfLvYYPwPnQaTYXhOcWKmBZZ ce5A1BBZ23ECINY+hDxCu9H5o8PmgHmUVOTjOoBfHPNZ4fAJ3dcX/sL4+cQkxEkr5fELFXgHjP9 xvTy8TcF65wMMzE4iYhBIuDv1qwlXjItNK9iiGbSaYLZB6FHnfvXO1K65ZTYw7ANRs2IExI/J1R 4NW+fC2JTtKXxGj/f6BOVHdGA1p5//OR+srn7V2oDoY/BzhRXIoSsSe95lfYR5UWa8qYWahm0KO mTJgrq87pdtSTwBVv9hdf8ITak/s0fpDcenjF/eVuoWy18AQ 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/pxa3xx-gcu.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/pxa3xx-gcu.c b/drivers/video/fbdev/pxa3xx-gcu.c index c3cd1e1cc01b..2b6ec8c66074 100644 --- a/drivers/video/fbdev/pxa3xx-gcu.c +++ b/drivers/video/fbdev/pxa3xx-gcu.c @@ -676,7 +676,7 @@ static int pxa3xx_gcu_probe(struct platform_device *pdev) return ret; } -static int pxa3xx_gcu_remove(struct platform_device *pdev) +static void pxa3xx_gcu_remove(struct platform_device *pdev) { struct pxa3xx_gcu_priv *priv = platform_get_drvdata(pdev); struct device *dev = &pdev->dev; @@ -686,8 +686,6 @@ static int pxa3xx_gcu_remove(struct platform_device *pdev) dma_free_coherent(dev, SHARED_SIZE, priv->shared, priv->shared_phys); clk_disable_unprepare(priv->clk); pxa3xx_gcu_free_buffers(dev, priv); - - return 0; } #ifdef CONFIG_OF @@ -700,7 +698,7 @@ MODULE_DEVICE_TABLE(of, pxa3xx_gcu_of_match); static struct platform_driver pxa3xx_gcu_driver = { .probe = pxa3xx_gcu_probe, - .remove = pxa3xx_gcu_remove, + .remove_new = pxa3xx_gcu_remove, .driver = { .name = DRV_NAME, .of_match_table = of_match_ptr(pxa3xx_gcu_of_match),