netdev - [PATCH net-next 06/11] net: stmmac: dwmac-qcom-ethqos: Convert to platform remove callback returning void

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun,  2 Apr 2023 16:30:20 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Vinod Koul <vkoul@...nel.org>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc:     Bhupesh Sharma <bhupesh.sharma@...aro.org>, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de
Subject: [PATCH net-next 06/11] net: stmmac: dwmac-qcom-ethqos: Convert to platform remove callback returning void

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@...gutronix.de>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index fba1fc88d2dc..de2f0df1f67c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -578,14 +578,12 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int qcom_ethqos_remove(struct platform_device *pdev)
+static void qcom_ethqos_remove(struct platform_device *pdev)
 {
 	struct qcom_ethqos *ethqos = get_stmmac_bsp_priv(&pdev->dev);
 
 	stmmac_pltfr_remove(pdev);
 	ethqos_clks_config(ethqos, false);
-
-	return 0;
 }
 
 static const struct of_device_id qcom_ethqos_match[] = {
@@ -597,7 +595,7 @@ MODULE_DEVICE_TABLE(of, qcom_ethqos_match);
 
 static struct platform_driver qcom_ethqos_driver = {
 	.probe  = qcom_ethqos_probe,
-	.remove = qcom_ethqos_remove,
+	.remove_new = qcom_ethqos_remove,
 	.driver = {
 		.name           = "qcom-ethqos",
 		.pm		= &stmmac_pltfr_pm_ops,
-- 
2.39.2