From patchwork Sun Mar 26 14:31:43 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: 13188256 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 684CDC761AF for ; Sun, 26 Mar 2023 14:34:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232597AbjCZOed (ORCPT ); Sun, 26 Mar 2023 10:34:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60602 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232544AbjCZOdI (ORCPT ); Sun, 26 Mar 2023 10:33:08 -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 E0C2776AF for ; Sun, 26 Mar 2023 07:32:58 -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 1pgRQL-00006X-KL; Sun, 26 Mar 2023 16:32:45 +0200 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 1pgRQI-006reW-RP; Sun, 26 Mar 2023 16:32:42 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQI-0088Yh-0m; Sun, 26 Mar 2023 16:32:42 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mauro Carvalho Chehab , Maxime Coquelin , Alexandre Torgue , =?utf-8?q?Uwe_Kleine-K?= =?utf-8?q?=C3=B6nig?= Cc: linux-media@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 076/117] media: dma2d: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:43 +0200 Message-Id: <20230326143224.572654-79-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230326143224.572654-1-u.kleine-koenig@pengutronix.de> References: <20230326143224.572654-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1826; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=Hf03W6FCnuJBdvXuTFOZXNHudlzADbBrZKtBOEpjYlM=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbhWjaNCRTr78svok4/G/qcUfXFkbJZeABAx T+Yc7umm8eJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW4QAKCRCPgPtYfRL+ TnPRB/9CMzAkMtzX9t2MUc+yuKmxmHlomkr7f1IZZ919Gdvmp3sWBbFKhor+nE/SbadRaj46216 mFmKZG0eYEnHfvWK/Pvqbj/E5urzyoFTywinaXnKS9jDLFlyz6zSvYosKqQEQNZNzkENDc/MWgp IlT3G5+SvbtX0gNJJ1/fqpZ3lbJWdTHbJ6sk0LIo5o08FNPoQtM8A4UL/aAm81R5Jkl15iyxDeR C0KQE1Dox+swebOdqRUvBar9uRN1Ir4smQEDZhz3fK3xjom0HLGFOF3MWyhGtn2gAKtpKmuc7Za mVzNVmXqG5ZifvWHKntrUJivwDcj7NUQfGk7fF/gVClnMl94 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-media@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@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/media/platform/st/stm32/dma2d/dma2d.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/st/stm32/dma2d/dma2d.c b/drivers/media/platform/st/stm32/dma2d/dma2d.c index 9706aa41b5d2..be56d2b5fae9 100644 --- a/drivers/media/platform/st/stm32/dma2d/dma2d.c +++ b/drivers/media/platform/st/stm32/dma2d/dma2d.c @@ -696,7 +696,7 @@ static int dma2d_probe(struct platform_device *pdev) return ret; } -static int dma2d_remove(struct platform_device *pdev) +static void dma2d_remove(struct platform_device *pdev) { struct dma2d_dev *dev = platform_get_drvdata(pdev); @@ -707,8 +707,6 @@ static int dma2d_remove(struct platform_device *pdev) vb2_dma_contig_clear_max_seg_size(&pdev->dev); clk_unprepare(dev->gate); clk_put(dev->gate); - - return 0; } static const struct of_device_id stm32_dma2d_match[] = { @@ -722,7 +720,7 @@ MODULE_DEVICE_TABLE(of, stm32_dma2d_match); static struct platform_driver dma2d_pdrv = { .probe = dma2d_probe, - .remove = dma2d_remove, + .remove_new = dma2d_remove, .driver = { .name = DMA2D_NAME, .of_match_table = stm32_dma2d_match,