Message ID | 20230401161938.2503204-6-u.kleine-koenig@pengutronix.de |
---|---|
State | Changes Requested |
Delegated to: | Miquel Raynal |
Headers | show
Return-Path: <linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=<UNKNOWN>) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=HNCaf4em; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Ppj8B578zz1yZJ for <incoming@patchwork.ozlabs.org>; Sun, 2 Apr 2023 02:21:14 +1000 (AEST) 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=1hHJ6X6/01Fgz4ay2EYjb8blT0spxgH9RzoMrxwIhXk=; b=HNCaf4em1NULHJ 8IrAFTtJMyPJhuF0WustJHQNQwjgKPTK7uC+tBKx7ylKVCYU9iap2FiFOsPRS3R7QmZElftIgLW8M 8eZuu4ZuTc8eNLgdUCoKhF3/7HpEkQSgSI35IL+nn4O46+fBQr1Die2/sCr9GbZ9HGFkhq7ozvbfB NcwiZrymyGsTiG2P4NoeKk7HiNCdZ0/sVNB5c83/UDR1/uA+PfbPqqaXplWaUUNSK942gALCfNedU OHvN06YfI41L2THcNH9Kkf5aRes/oOWsdQ27XWmzSgCdcrRqlJQI8jzGiZv8C9RC+37qT+BBMN2tt x6y3DDfT1T8QErwWQzPA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pidxr-00AsOi-0P; Sat, 01 Apr 2023 16:20:27 +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 1pidxX-00As8p-0k for linux-mtd@lists.infradead.org; Sat, 01 Apr 2023 16:20:12 +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 <ukl@pengutronix.de>) id 1pidxE-00089J-Uk; Sat, 01 Apr 2023 18:19:48 +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 <ukl@pengutronix.de>) id 1pidxD-008GPs-Re; Sat, 01 Apr 2023 18:19:47 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from <ukl@pengutronix.de>) id 1pidxD-009kfN-8Q; Sat, 01 Apr 2023 18:19:47 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de> To: Miquel Raynal <miquel.raynal@bootlin.com>, Vignesh Raghavendra <vigneshr@ti.com> Cc: Richard Weinberger <richard@nod.at>, linux-mtd@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 05/49] mtd: rawnand: ams-delta: Convert to platform remove callback returning void Date: Sat, 1 Apr 2023 18:18:54 +0200 Message-Id: <20230401161938.2503204-6-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230401161938.2503204-1-u.kleine-koenig@pengutronix.de> References: <20230401161938.2503204-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1825; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=VtI+ygXkmxX71/ikFzjg+mq47iFVFdJLSTwb8ONqOvM=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkKFj1D/c0e3ml2OyzJJCcbGz2zS36rkT0rwK5W cIOUjYX0QiJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZChY9QAKCRCPgPtYfRL+ TkBlB/oCW8MQOYBxMUx4vozICJ7xHt0uicFs8nNJalU01QgdMUZrHfM+75CbIOfSpYS0jkWiv9t Sm9oKsU2yNCkc6WjCaQp4LAnZYAYb5iPeChDEbeZcP+eBcp6aSc5lbuILjoeFriYrqxPUWwAOAo K7yKTgIZ/d8yDPIp1HyB6P6/aTIXRr4oXfN+V5DbkfgKHdj/rDyjRApl6oxkduJdmerhqgncSIn aEJJROXZ353DgBaQ1/uDzUs4EolslP75RWcqxXG8t3O+oEYnGDpGWRT8MgjF443Mmzyubwmgt+3 X7y+Vd4+GBvoBQDSQu7H//sS7i+Az4loQ5QbAT3jm5BqVpXD 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-mtd@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230401_092007_283454_5654A0A8 X-CRM114-Status: GOOD ( 16.52 ) X-Spam-Score: -2.3 (--) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: 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. 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Series |
mtd: nand: Convert to platform remove callback returning void
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diff --git a/drivers/mtd/nand/raw/ams-delta.c b/drivers/mtd/nand/raw/ams-delta.c index 13de39aa3288..fa621ffa6490 100644 --- a/drivers/mtd/nand/raw/ams-delta.c +++ b/drivers/mtd/nand/raw/ams-delta.c @@ -397,7 +397,7 @@ static int gpio_nand_probe(struct platform_device *pdev) /* * Clean up routine */ -static int gpio_nand_remove(struct platform_device *pdev) +static void gpio_nand_remove(struct platform_device *pdev) { struct gpio_nand *priv = platform_get_drvdata(pdev); struct mtd_info *mtd = nand_to_mtd(&priv->nand_chip); @@ -410,8 +410,6 @@ static int gpio_nand_remove(struct platform_device *pdev) ret = mtd_device_unregister(mtd); WARN_ON(ret); nand_cleanup(mtd_to_nand(mtd)); - - return 0; } #ifdef CONFIG_OF @@ -434,7 +432,7 @@ MODULE_DEVICE_TABLE(platform, gpio_nand_plat_id_table); static struct platform_driver gpio_nand_driver = { .probe = gpio_nand_probe, - .remove = gpio_nand_remove, + .remove_new = gpio_nand_remove, .id_table = gpio_nand_plat_id_table, .driver = { .name = "ams-delta-nand",
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 <u.kleine-koenig@pengutronix.de> --- drivers/mtd/nand/raw/ams-delta.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)