linux-kernel - [PATCH 4/5] mmc: sdhci-of-arasan: Obviously always return success in remove callback

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]

Message-Id: <20220610211257.102071-4-u.kleine-koenig@pengutronix.de>
Date:   Fri, 10 Jun 2022 23:12:56 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Michal Simek <michal.simek@...inx.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     kernel@...gutronix.de, linux-arm-kernel@...ts.infradead.org,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] mmc: sdhci-of-arasan: Obviously always return success in remove callback

sdhci_pltfm_unregister() returns 0 unconditionally and returning an
error in a platform remove callback isn't very sensible. (The only
effect of the latter is that the device core emits a generic warning and
then removes the device anyhow.)

So return 0 unconditionally to make it obvious there is no error
forwarded to the upper layers.

This is a preparation for making platform remove callbacks return void.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
---
 drivers/mmc/host/sdhci-of-arasan.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 757801dfc308..3997cad1f793 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -1733,7 +1733,6 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
 
 static int sdhci_arasan_remove(struct platform_device *pdev)
 {
-	int ret;
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_arasan_data *sdhci_arasan = sdhci_pltfm_priv(pltfm_host);
@@ -1747,11 +1746,11 @@ static int sdhci_arasan_remove(struct platform_device *pdev)
 
 	sdhci_arasan_unregister_sdclk(&pdev->dev);
 
-	ret = sdhci_pltfm_unregister(pdev);
+	sdhci_pltfm_unregister(pdev);
 
 	clk_disable_unprepare(clk_ahb);
 
-	return ret;
+	return 0;
 }
 
 static struct platform_driver sdhci_arasan_driver = {
-- 
2.36.1