From patchwork Tue Aug 1 11:02:30 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: 13336504 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5E918C04A94 for ; Tue, 1 Aug 2023 11:03:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BuGhtRLZC1e4XRwZPqmINjt+taawOxFy/69Y0JB1vOo=; b=BfnpF3oydLu04C cRco0khO4+DNuzjUEPKpALqE4SMiYPTPtW9AOUuRaOovOF3EW606f6yek3sCRWhOPXD+Qkx9hxKNb Rruh6y4rUP9JgRlKBfiJiDjnEXlsiHVih6Lg2V0d3OOn/WD6JFqoD+Y+a0Uq8uo4Uv0vupk10X5oF Uil6O7iZJxOz0IKnsUanJ6F9YkAtwKSnVAcn/VGOM/Xl77G2mxNjdcJVmtod8Uq+OZkE9fhPIuucp PHODStr6rLEFsZ+33xXfYTi6gWF+K1AFpGmeDVNO3CatfnPWpudfcTkXEmnTKum6MjSKlWRz2J1J+ VeDajr8DxqQ/PFGh0yOg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qQn9V-0022db-1W; Tue, 01 Aug 2023 11:02:57 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qQn9R-0022aK-1g for linux-arm-kernel@lists.infradead.org; Tue, 01 Aug 2023 11:02:55 +0000 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 1qQn9I-0006et-HM; Tue, 01 Aug 2023 13:02:44 +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 1qQn9H-000MYo-92; Tue, 01 Aug 2023 13:02:43 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qQn9G-009bbB-Iu; Tue, 01 Aug 2023 13:02:42 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Laurentiu Palcu , David Airlie , Daniel Vetter , Shawn Guo , Sascha Hauer Cc: Lucas Stach , Fabio Estevam , NXP Linux Team , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, Thomas Zimmermann , Jyri Sarha Subject: [PATCH v2 03/12] drm/imx/dcss: Convert to platform remove callback returning void Date: Tue, 1 Aug 2023 13:02:30 +0200 Message-Id: <20230801110239.831099-4-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230801110239.831099-1-u.kleine-koenig@pengutronix.de> References: <20230801110239.831099-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1894; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=BZidcBKSd2ijbj/nbjOcmWzNwzUJOCE1Cp5633XAJv0=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkyOW3i4JmG18OS0lfn5jCU63b1aNkP0mw7apvE BJ3+NChQ8qJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZMjltwAKCRCPgPtYfRL+ To83B/9/qDabOlJac5i/Fmd0JtapI7S7gD+oNBuLW6g0IGJZ6Pyavf1dCTciKE/dWYtQr87JrgX OqrN1mq3M4mZDU59xSAngDVXRefZpyN7SxLOjLrHk1raKUCDi4nlEg4LCQ5q9ZSxaf0BzEydpam zkhav2rC5VfS6gwy5pY4klG2vQTAGLduNWK+3SExAep//vKdR9tDADpzwfdhQNOCiaxEz1ZPUq3 /1x07eoM6TS7Egg59VmBkE4GJz4qSbgHz1QwwknWDJ//HFtUGFYjq9IqM8HCwKz4O0OdV01wiBv 9Oxlz9Qy+/FFouqmqUIvOQbY49WPlhgNwNFiLB1jj2TF8hUZ 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-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230801_040253_579585_B201B9F2 X-CRM114-Status: GOOD ( 17.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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. Reviewed-by: Thomas Zimmermann Reviewed-by: Jyri Sarha Signed-off-by: Uwe Kleine-König --- drivers/gpu/drm/imx/dcss/dcss-drv.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/imx/dcss/dcss-drv.c b/drivers/gpu/drm/imx/dcss/dcss-drv.c index c68b0d93ae9e..4354f50ff0b6 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-drv.c +++ b/drivers/gpu/drm/imx/dcss/dcss-drv.c @@ -80,7 +80,7 @@ static int dcss_drv_platform_probe(struct platform_device *pdev) return err; } -static int dcss_drv_platform_remove(struct platform_device *pdev) +static void dcss_drv_platform_remove(struct platform_device *pdev) { struct dcss_drv *mdrv = dev_get_drvdata(&pdev->dev); @@ -88,8 +88,6 @@ static int dcss_drv_platform_remove(struct platform_device *pdev) dcss_dev_destroy(mdrv->dcss); kfree(mdrv); - - return 0; } static struct dcss_type_data dcss_types[] = { @@ -113,7 +111,7 @@ MODULE_DEVICE_TABLE(of, dcss_of_match); static struct platform_driver dcss_platform_driver = { .probe = dcss_drv_platform_probe, - .remove = dcss_drv_platform_remove, + .remove_new = dcss_drv_platform_remove, .driver = { .name = "imx-dcss", .of_match_table = dcss_of_match,