linux-kernel - [PATCH 04/12] gpio: siox: use new GPIO line value setter callbacks

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: <20250625-gpiochip-set-rv-gpio-round2-v1-4-bc110a3b52ff@linaro.org>
Date: Wed, 25 Jun 2025 12:33:27 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Ludovic Desroches <ludovic.desroches@...rochip.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Andy Shevchenko <andy@...nel.org>, 
 Thorsten Scherer <t.scherer@...elmann.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Orson Zhai <orsonzhai@...il.com>, 
 Baolin Wang <baolin.wang@...ux.alibaba.com>, 
 Chunyan Zhang <zhang.lyra@...il.com>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 04/12] gpio: siox: use new GPIO line value setter callbacks

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/gpio/gpio-siox.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-siox.c b/drivers/gpio/gpio-siox.c
index 051bc99bdfb2aa3c8a382f773c5892fed6e0a8b3..95355dda621b40124f4702432565b7381c4e6686 100644
--- a/drivers/gpio/gpio-siox.c
+++ b/drivers/gpio/gpio-siox.c
@@ -160,8 +160,8 @@ static int gpio_siox_get(struct gpio_chip *chip, unsigned int offset)
 	return ret;
 }
 
-static void gpio_siox_set(struct gpio_chip *chip,
-			  unsigned int offset, int value)
+static int gpio_siox_set(struct gpio_chip *chip,
+			 unsigned int offset, int value)
 {
 	struct gpio_siox_ddata *ddata = gpiochip_get_data(chip);
 	u8 mask = 1 << (19 - offset);
@@ -174,6 +174,8 @@ static void gpio_siox_set(struct gpio_chip *chip,
 		ddata->setdata[0] &= ~mask;
 
 	mutex_unlock(&ddata->lock);
+
+	return 0;
 }
 
 static int gpio_siox_direction_input(struct gpio_chip *chip,
@@ -191,8 +193,7 @@ static int gpio_siox_direction_output(struct gpio_chip *chip,
 	if (offset < 12)
 		return -EINVAL;
 
-	gpio_siox_set(chip, offset, value);
-	return 0;
+	return gpio_siox_set(chip, offset, value);
 }
 
 static int gpio_siox_get_direction(struct gpio_chip *chip, unsigned int offset)
@@ -236,7 +237,7 @@ static int gpio_siox_probe(struct siox_device *sdevice)
 	gc->parent = dev;
 	gc->owner = THIS_MODULE;
 	gc->get = gpio_siox_get;
-	gc->set = gpio_siox_set;
+	gc->set_rv = gpio_siox_set;
 	gc->direction_input = gpio_siox_direction_input;
 	gc->direction_output = gpio_siox_direction_output;
 	gc->get_direction = gpio_siox_get_direction;

-- 
2.48.1