gpio: gpio-mm: Utilize devm_ functions in driver probe callback
The devm_ resource manager functions allow memory to be automatically
released when a device is unbound. This patch takes advantage of the
resource manager functions and replaces the gpiochip_add_data call with
the devm_gpiochip_add_data call. In addition, the gpiomm_remove function
has been removed as no longer necessary due to the use of the relevant
devm_ resource manager functions.
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-gpio-mm.c b/drivers/gpio/gpio-gpio-mm.c
index 0934895..393c8f9 100644
--- a/drivers/gpio/gpio-gpio-mm.c
+++ b/drivers/gpio/gpio-gpio-mm.c
@@ -263,7 +263,7 @@ static int gpiomm_probe(struct device *dev, unsigned int id)
dev_set_drvdata(dev, gpiommgpio);
- err = gpiochip_add_data(&gpiommgpio->chip, gpiommgpio);
+ err = devm_gpiochip_add_data(dev, &gpiommgpio->chip, gpiommgpio);
if (err) {
dev_err(dev, "GPIO registering failed (%d)\n", err);
return err;
@@ -282,21 +282,11 @@ static int gpiomm_probe(struct device *dev, unsigned int id)
return 0;
}
-static int gpiomm_remove(struct device *dev, unsigned int id)
-{
- struct gpiomm_gpio *const gpiommgpio = dev_get_drvdata(dev);
-
- gpiochip_remove(&gpiommgpio->chip);
-
- return 0;
-}
-
static struct isa_driver gpiomm_driver = {
.probe = gpiomm_probe,
.driver = {
.name = "gpio-mm"
},
- .remove = gpiomm_remove
};
module_isa_driver(gpiomm_driver, num_gpiomm);
