linux-kernel - [PATCH v2 2/3] gpio: gpio-regmap: Use devm_add

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Date:   Fri, 21 May 2021 09:28:24 +0300
From:   Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
To:     Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Matti Vaittinen <mazziesaccount@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Michael Walle <michael@...le.cc>, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-power@...rohmeurope.com
Subject: [PATCH v2 2/3] gpio: gpio-regmap: Use devm_add_action()

Slightly simplify the devm_gpio_regmap_register() by using the
devm_add_action().

Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
---
Changelog:
  - New patch at v2

 drivers/gpio/gpio-regmap.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c
index c05370e984b9..4555e59f916e 100644
--- a/drivers/gpio/gpio-regmap.c
+++ b/drivers/gpio/gpio-regmap.c
@@ -341,9 +341,9 @@ void gpio_regmap_unregister(struct gpio_regmap *gpio)
 }
 EXPORT_SYMBOL_GPL(gpio_regmap_unregister);
 
-static void devm_gpio_regmap_unregister(struct device *dev, void *res)
+static void devm_gpio_regmap_unregister(void *res)
 {
-	gpio_regmap_unregister(*(struct gpio_regmap **)res);
+	gpio_regmap_unregister(res);
 }
 
 /**
@@ -360,20 +360,12 @@ static void devm_gpio_regmap_unregister(struct device *dev, void *res)
 struct gpio_regmap *devm_gpio_regmap_register(struct device *dev,
 					      const struct gpio_regmap_config *config)
 {
-	struct gpio_regmap **ptr, *gpio;
-
-	ptr = devres_alloc(devm_gpio_regmap_unregister, sizeof(*ptr),
-			   GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
+	struct gpio_regmap *gpio;
 
 	gpio = gpio_regmap_register(config);
-	if (!IS_ERR(gpio)) {
-		*ptr = gpio;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
+
+	if (!IS_ERR(gpio))
+		devm_add_action(dev, devm_gpio_regmap_unregister, gpio);
 
 	return gpio;
 }
-- 
2.25.4


-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =] 

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