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gpiolib: Convert to use guard()() for gpio_machine_hogs_mutex

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The driver uses guard()()/scoped_guard() for the rest of the synchronisation
calls. Convert to use the same for gpio_machine_hogs_mutex.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250416095645.2027695-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This commit is contained in:
Andy Shevchenko
2025-04-16 12:55:10 +03:00
committed by Bartosz Golaszewski
parent f1d6cd0774
commit d4fe58c8ea
1 changed files with 4 additions and 8 deletions
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12
drivers/gpio/gpiolib.c
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@@ -888,14 +888,12 @@ static void machine_gpiochip_add(struct gpio_chip *gc)
{
struct gpiod_hog *hog;
mutex_lock(&gpio_machine_hogs_mutex);
guard(mutex)(&gpio_machine_hogs_mutex);
list_for_each_entry(hog, &gpio_machine_hogs, list) {
if (!strcmp(gc->label, hog->chip_label))
gpiochip_machine_hog(gc, hog);
}
mutex_unlock(&gpio_machine_hogs_mutex);
}
static void gpiochip_setup_devs(void)
@@ -4439,7 +4437,7 @@ void gpiod_add_hogs(struct gpiod_hog *hogs)
{
struct gpiod_hog *hog;
mutex_lock(&gpio_machine_hogs_mutex);
guard(mutex)(&gpio_machine_hogs_mutex);
for (hog = &hogs[0]; hog->chip_label; hog++) {
list_add_tail(&hog->list, &gpio_machine_hogs);
@@ -4453,8 +4451,6 @@ void gpiod_add_hogs(struct gpiod_hog *hogs)
if (gdev)
gpiochip_machine_hog(gpio_device_get_chip(gdev), hog);
}
mutex_unlock(&gpio_machine_hogs_mutex);
}
EXPORT_SYMBOL_GPL(gpiod_add_hogs);
@@ -4462,10 +4458,10 @@ void gpiod_remove_hogs(struct gpiod_hog *hogs)
{
struct gpiod_hog *hog;
mutex_lock(&gpio_machine_hogs_mutex);
guard(mutex)(&gpio_machine_hogs_mutex);
for (hog = &hogs[0]; hog->chip_label; hog++)
list_del(&hog->list);
mutex_unlock(&gpio_machine_hogs_mutex);
}
EXPORT_SYMBOL_GPL(gpiod_remove_hogs);