From nobody Tue Feb 10 02:00:32 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5527545945 for ; Wed, 21 Feb 2024 09:54:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708509266; cv=none; b=JilQwnxM6AwvzimdfzPh2AY9f5g6Kkt+nXaQ6174L72o2pd7LuSljr4iBCAUbbax46M5GIVl6YUJ9RVh1AEOvd1AwbG6S3XNZKT4ZQ/BY00xdW5OvMjw4VYSjYIgmXmE9JC0zzsTUtEZ4Ey6tvko3bdiBD41Xh4zTSBHW/tmYMc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708509266; c=relaxed/simple; bh=ceIfAJGD21yqrCu3pRBnl7qS6woYhZWPmCbj1WktHEw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=n92wZDK5OZW6q7svlTZUsY+zO4zwubOaCFFnPxwX+UYrDLBoCqb+xaG/rjTir0vZQpmWrbpiRH51goYq8WcgR+xQxjgxGY0BGkuRC8Z6Vfyl8Lc5zaS9zVvepwd029v2JY6phC6gaO112yWrFnyhYGcISBHDkAbF3zTpJNVwRJs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de 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 1rcjIp-0007GV-Kv; Wed, 21 Feb 2024 10:54:11 +0100 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 1rcjIo-0020pO-Go; Wed, 21 Feb 2024 10:54:10 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1rcjIo-008mZ9-1N; Wed, 21 Feb 2024 10:54:10 +0100 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: Arnd Bergmann , Greg Kroah-Hartman Cc: kernel@pengutronix.de, Frederic Barrat , Andrew Donnellan , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/11] cxl: Convert to platform remove callback returning void Date: Wed, 21 Feb 2024 10:53:46 +0100 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Developer-Signature: v=1; a=openpgp-sha256; l=1743; i=u.kleine-koenig@pengutronix.de; h=from:subject:message-id; bh=ceIfAJGD21yqrCu3pRBnl7qS6woYhZWPmCbj1WktHEw=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBl1cgt8CRj7FyjoliavbQtoyeJoVa/eIfWpBiD0 I22MkayPfCJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZdXILQAKCRCPgPtYfRL+ TnmxCACPUIWrtGTTucmi+16fEgSXVpRrmtRZyFotM2Ky/2rMpHxG8L4jWkle7RHMSm/JWMEfQnt EzSNutI6wb4kZP9bn1ibHhzzlybBmqXY40SYB3BMmzIL9WxTe5egQdEHO2zbIdAiLkhLwmu3+zn moPHodSmLV/tgalWnDiuSvzXnGlDFLRB2vvlhE7LetAFQ55i1v4HDxEJdInctDklrzdk83aHfuY qq8v0u7lTym/HSHvuUSvE4UyR0PIdYBO3kcMaykO4H8AoYAVJl7eA3STIiq8HeY8v73Wf/nA4e2 G3Db7C6soCl7+vZAQXisdhDfNfd7MIRdO6gGSw0T54bnDAxR X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: quoted-printable 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-kernel@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-K=C3=B6nig Acked-by: Andrew Donnellan --- drivers/misc/cxl/of.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/misc/cxl/of.c b/drivers/misc/cxl/of.c index 25ce725035e7..bcc005dff1c0 100644 --- a/drivers/misc/cxl/of.c +++ b/drivers/misc/cxl/of.c @@ -431,7 +431,7 @@ int cxl_of_read_adapter_properties(struct cxl *adapter,= struct device_node *np) return 0; } =20 -static int cxl_of_remove(struct platform_device *pdev) +static void cxl_of_remove(struct platform_device *pdev) { struct cxl *adapter; int afu; @@ -441,7 +441,6 @@ static int cxl_of_remove(struct platform_device *pdev) cxl_guest_remove_afu(adapter->afu[afu]); =20 cxl_guest_remove_adapter(adapter); - return 0; } =20 static void cxl_of_shutdown(struct platform_device *pdev) @@ -501,6 +500,6 @@ struct platform_driver cxl_of_driver =3D { .owner =3D THIS_MODULE }, .probe =3D cxl_of_probe, - .remove =3D cxl_of_remove, + .remove_new =3D cxl_of_remove, .shutdown =3D cxl_of_shutdown, }; --=20 2.43.0