From patchwork Sun Mar 26 14:31:34 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: 13188191 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 6AE4AC6FD1C for ; Sun, 26 Mar 2023 14:33:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232542AbjCZOdD (ORCPT ); Sun, 26 Mar 2023 10:33:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232518AbjCZOc6 (ORCPT ); Sun, 26 Mar 2023 10:32:58 -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 0D3D710B for ; Sun, 26 Mar 2023 07:32:54 -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-0008Ti-Im; 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-006rdu-MN; 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 1pgRQF-0088Y5-V8; Sun, 26 Mar 2023 16:32:39 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Sylwester Nawrocki , Mauro Carvalho Chehab , Krzysztof Kozlowski 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 067/117] media: mipi-csis: Convert to platform remove callback returning void Date: Sun, 26 Mar 2023 16:31:34 +0200 Message-Id: <20230326143224.572654-70-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=1899; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=mY73QFpgRxNcKjqUvYcR4GWNYI+mT0BWY3J0eONn9xc=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkIFbWO5mJP7fcRhNOKip7n58IkQutGAFFw0tCn 3XtNW0/HoKJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZCBW1gAKCRCPgPtYfRL+ TlytB/wJRDahhP6YpwzaZN3S3D+YHv6A77HB2H+9jXKah5qqwWRdG1N6FsSlR7Ehaz5ZWaWmXuD eUdrfnrNjvCU86XRu80cQoaIey949jP+/F67rNG6N4KjBEVm+ghLU5pzeJUK6PgibR/fj47HCNA fxAlnVJypSCRI668qPINBlkx2awlUK86Bj5KO97zw/KMIawkBKAoPCg6dxbvJPsOJCuF3SGzJPQ pFy9uV5YY+hlXl7fxlCnXRZlciRpgWgD8wLz6bC1Jdr9HnvTqx5jEEENgx5gaDjrUDuZQBqhT0o q5wEZnKfIlqg0zNls+ei6J+dPoiXALNVsyfBZaorJloYYSUw 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/exynos4-is/mipi-csis.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c index 6a0d35f33e8c..686ca8753ba2 100644 --- a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c +++ b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c @@ -975,7 +975,7 @@ static int s5pcsis_runtime_resume(struct device *dev) } #endif -static int s5pcsis_remove(struct platform_device *pdev) +static void s5pcsis_remove(struct platform_device *pdev) { struct v4l2_subdev *sd = platform_get_drvdata(pdev); struct csis_state *state = sd_to_csis_state(sd); @@ -987,8 +987,6 @@ static int s5pcsis_remove(struct platform_device *pdev) s5pcsis_clk_put(state); media_entity_cleanup(&state->sd.entity); - - return 0; } static const struct dev_pm_ops s5pcsis_pm_ops = { @@ -1022,7 +1020,7 @@ MODULE_DEVICE_TABLE(of, s5pcsis_of_match); static struct platform_driver s5pcsis_driver = { .probe = s5pcsis_probe, - .remove = s5pcsis_remove, + .remove_new = s5pcsis_remove, .driver = { .of_match_table = s5pcsis_of_match, .name = CSIS_DRIVER_NAME,