From patchwork Sun Mar 26 14:31:28 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: 667342 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 B8422C77B6D for ; Sun, 26 Mar 2023 14:33:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232101AbjCZOdN (ORCPT ); Sun, 26 Mar 2023 10:33:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232557AbjCZOdK (ORCPT ); Sun, 26 Mar 2023 10:33:10 -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 C559A2D5F for ; Sun, 26 Mar 2023 07:32:59 -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 1pgRQJ-0008TG-FG; Sun, 26 Mar 2023 16:32:43 +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 1pgRQG-006rdi-EY; Sun, 26 Mar 2023 16:32:40 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pgRQE-0088Xf-LM; Sun, 26 Mar 2023 16:32:38 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Mauro Carvalho Chehab , Krzysztof Kozlowski , =?utf-8?q?Uwe_Kleine-?= =?utf-8?q?K=C3=B6nig?= , Colin Ian King , Hans Verkuil Cc: Alim Akhtar , linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 061/117] media: gsc-core: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:28 +0200 Message-Id: <20230326143224.572654-64-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=1804; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=eCSifVDAXW1X9cqwaaO+CIz3Ffo9A6DmGqCvAijEceE=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbPr3FL7OeCsFMG8fuH3lucwcXA/JAft3Z+O qnuaKUrJFKJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBWzwAKCRCPgPtYfRL+ To6mB/0b1uRTMan64x+JAXAbjBLCzuNlTD0aJ1JMcGvaw+HooBDUHxkZcBGqZjOXYNh9JX7fzl/ +2rowxWYNLnHCr8MUHenj1HqA1ZncCV5VbOp7yfbxP5ZZocsRrD/w8bkWFiFfpRq5PhwLmGes0P rSdZZwLEfSto6Hn9dC2D9gE3zfVEydSwcAstdD7aSp3Hcgcsn9Jfot61Qx3xWnKHXA29W5t2BuA UnhBg2/5zUbbgTUPFSGkDsEVcGOWzchrapyd77nC+/pXrOfbIeW9yTXtY0xWrZV8H/6pwmWRgj4 yWzbKvRkT6iE7TEPef8MsoFq7j0VyZKUqw5Zrg0mP5ej8ogf 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-samsung-soc@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@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/samsung/exynos-gsc/gsc-core.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/samsung/exynos-gsc/gsc-core.c b/drivers/media/platform/samsung/exynos-gsc/gsc-core.c index b147c645ae0b..1fb34de70649 100644 --- a/drivers/media/platform/samsung/exynos-gsc/gsc-core.c +++ b/drivers/media/platform/samsung/exynos-gsc/gsc-core.c @@ -1201,7 +1201,7 @@ static int gsc_probe(struct platform_device *pdev) return ret; } -static int gsc_remove(struct platform_device *pdev) +static void gsc_remove(struct platform_device *pdev) { struct gsc_dev *gsc = platform_get_drvdata(pdev); int i; @@ -1220,7 +1220,6 @@ static int gsc_remove(struct platform_device *pdev) pm_runtime_set_suspended(&pdev->dev); dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name); - return 0; } #ifdef CONFIG_PM @@ -1311,7 +1310,7 @@ static const struct dev_pm_ops gsc_pm_ops = { static struct platform_driver gsc_driver = { .probe = gsc_probe, - .remove = gsc_remove, + .remove_new = gsc_remove, .driver = { .name = GSC_MODULE_NAME, .pm = &gsc_pm_ops,