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gpio: ljca: use devm_mutex_init() to simplify the error path and remove()

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Destroying the mutexes is done at the end of remove() so switching to
devres does not constitute a functional change. Use devm_mutex_init()
and remove repetitions of mutex_destroy().

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20241008162416.85111-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2024-10-08 18:24:16 +02:00
parent a937ee6d7e
commit 476f18c089
1 changed files with 9 additions and 8 deletions
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17
drivers/gpio/gpio-ljca.c
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@ -420,8 +420,14 @@ static int ljca_gpio_probe(struct auxiliary_device *auxdev,
if (!ljca_gpio->connect_mode)
return -ENOMEM;
mutex_init(&ljca_gpio->irq_lock);
mutex_init(&ljca_gpio->trans_lock);
ret = devm_mutex_init(&auxdev->dev, &ljca_gpio->irq_lock);
if (ret)
return ret;
ret = devm_mutex_init(&auxdev->dev, &ljca_gpio->trans_lock);
if (ret)
return ret;
ljca_gpio->gc.direction_input = ljca_gpio_direction_input;
ljca_gpio->gc.direction_output = ljca_gpio_direction_output;
ljca_gpio->gc.get_direction = ljca_gpio_get_direction;
@ -453,11 +459,8 @@ static int ljca_gpio_probe(struct auxiliary_device *auxdev,
INIT_WORK(&ljca_gpio->work, ljca_gpio_async);
ret = gpiochip_add_data(&ljca_gpio->gc, ljca_gpio);
if (ret) {
if (ret)
ljca_unregister_event_cb(ljca);
mutex_destroy(&ljca_gpio->irq_lock);
mutex_destroy(&ljca_gpio->trans_lock);
}
return ret;
}
@ -469,8 +472,6 @@ static void ljca_gpio_remove(struct auxiliary_device *auxdev)
gpiochip_remove(&ljca_gpio->gc);
ljca_unregister_event_cb(ljca_gpio->ljca);
cancel_work_sync(&ljca_gpio->work);
mutex_destroy(&ljca_gpio->irq_lock);
mutex_destroy(&ljca_gpio->trans_lock);
}
static const struct auxiliary_device_id ljca_gpio_id_table[] = {