From patchwork Fri Oct 20 07:55:32 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: 13430195 X-Patchwork-Delegate: herbert@gondor.apana.org.au 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 1FA0CC001DF for ; Fri, 20 Oct 2023 07:56:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376466AbjJTH4q (ORCPT ); Fri, 20 Oct 2023 03:56:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1376465AbjJTH4l (ORCPT ); Fri, 20 Oct 2023 03:56:41 -0400 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 88391D6B for ; Fri, 20 Oct 2023 00:56:37 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qtkMz-0003Gr-IJ; Fri, 20 Oct 2023 09:56:33 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qtkMz-002yUX-5Q; Fri, 20 Oct 2023 09:56:33 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qtkMy-002OIn-SK; Fri, 20 Oct 2023 09:56:32 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Herbert Xu , "David S. Miller" Cc: Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 10/42] crypto: atmel-tdes - Convert to platform remove callback returning void Date: Fri, 20 Oct 2023 09:55:32 +0200 Message-ID: <20231020075521.2121571-54-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231020075521.2121571-44-u.kleine-koenig@pengutronix.de> References: <20231020075521.2121571-44-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1758; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=t+zZKF/41Pj8NMywr8APo/EkmnfD4TbA5Py4GmYqBb0=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlMjJ1UaIojh+TPeL0s6oCgZLQXSnzxlS5/leo5 9crqTgUZRiJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZTIydQAKCRCPgPtYfRL+ Tu0UB/9woJisdyYJBaNEYFOvHk+plPkoaERjrwAgYCgfR66po9nEO6WEfjW/KsPzb9bzv1qPhxE 5c/9j5TIgoMTL/pb+mJoaKAUwEapFYRBjjEX8YJFc7aUPgjq/Eei7XrruH5cyhDLaKlmMGzKZCd q1XuUmzJSNFAwWmDOzlLfijEvYQSJgvxe8glmA7C1Tw5ButatJGndx08FXn0G9OBPJfzUAOho2r 2k3ml3n4SK5u+bhnUrdVgF99Ldsimv250W5/haTEWFo719x04tkh1RtfBzrmKG3EDXH8IiUpsaC hvSHhdc10DUD0g+JxS2qQZAzZGw6fOQ1et1+vS4H1wQLESVo 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.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-crypto@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@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 ignored (apart from emitting a warning) 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. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König --- drivers/crypto/atmel-tdes.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c index 099b32a10dd7..27b7000e25bc 100644 --- a/drivers/crypto/atmel-tdes.c +++ b/drivers/crypto/atmel-tdes.c @@ -1246,7 +1246,7 @@ static int atmel_tdes_probe(struct platform_device *pdev) return err; } -static int atmel_tdes_remove(struct platform_device *pdev) +static void atmel_tdes_remove(struct platform_device *pdev) { struct atmel_tdes_dev *tdes_dd = platform_get_drvdata(pdev); @@ -1263,13 +1263,11 @@ static int atmel_tdes_remove(struct platform_device *pdev) atmel_tdes_dma_cleanup(tdes_dd); atmel_tdes_buff_cleanup(tdes_dd); - - return 0; } static struct platform_driver atmel_tdes_driver = { .probe = atmel_tdes_probe, - .remove = atmel_tdes_remove, + .remove_new = atmel_tdes_remove, .driver = { .name = "atmel_tdes", .of_match_table = atmel_tdes_dt_ids,