lede/target/linux/generic/backport-6.6/894-v6.7-net-dsa-realtek-Convert-to-platform-remove-callback.patch
Luiz Angelo Daros de Luca 0263cb3835 kernel: netdevices: add realtek DSA modules
Uses upstream DSA switch modules (rtl8365mb, rtl8366), similar to
RTL8367C and rtl8366rb swconfig drivers.

The package dependencies exclude targets built without kernel CONFIG_OF.

It also fixes the rtl8366rb LED support.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Signed-off-by: Robert Marko <robimarko@gmail.com>
2025-02-14 20:10:08 +08:00

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2.4 KiB
Diff

From d48a5472b8f2b29800bb25913f9403765005f1bc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Mon, 18 Sep 2023 21:19:14 +0200
Subject: [PATCH] net: dsa: realtek: Convert to platform remove callback
returning void
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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() is 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 <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
---
drivers/net/dsa/realtek/realtek-smi.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/net/dsa/realtek/realtek-smi.c
+++ b/drivers/net/dsa/realtek/realtek-smi.c
@@ -506,12 +506,12 @@ static int realtek_smi_probe(struct plat
return 0;
}
-static int realtek_smi_remove(struct platform_device *pdev)
+static void realtek_smi_remove(struct platform_device *pdev)
{
struct realtek_priv *priv = platform_get_drvdata(pdev);
if (!priv)
- return 0;
+ return;
dsa_unregister_switch(priv->ds);
if (priv->slave_mii_bus)
@@ -520,8 +520,6 @@ static int realtek_smi_remove(struct pla
/* leave the device reset asserted */
if (priv->reset)
gpiod_set_value(priv->reset, 1);
-
- return 0;
}
static void realtek_smi_shutdown(struct platform_device *pdev)
@@ -559,7 +557,7 @@ static struct platform_driver realtek_sm
.of_match_table = realtek_smi_of_match,
},
.probe = realtek_smi_probe,
- .remove = realtek_smi_remove,
+ .remove_new = realtek_smi_remove,
.shutdown = realtek_smi_shutdown,
};
module_platform_driver(realtek_smi_driver);