[PATCH v3 3/7] gpio: exar: switch to a simpler IDA interface

Bartosz Golaszewski
2020-11-10T12:34:46Z

From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

We don't need to specify any ranges when allocating IDs so we can switch
to ida_alloc() and ida_free() instead of the ida_simple_ counterparts.

ida_simple_get(ida, 0, 0, gfp) is equivalent to
ida_alloc_range(ida, 0, UINT_MAX, gfp) which is equivalent to
ida_alloc(ida, gfp). Note: IDR will never actually allocate an ID
larger than INT_MAX.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
drivers/gpio/gpio-exar.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-exar.c b/drivers/gpio/gpio-exar.c
index 1941ae533418..752e8437ff80 100644
--- a/drivers/gpio/gpio-exar.c
+++ b/drivers/gpio/gpio-exar.c
@@ -149,7 +149,7 @@ static int gpio_exar_probe(struct platform_device *pdev)

mutex_init(&exar_gpio->lock);

- index = ida_simple_get(&ida_index, 0, 0, GFP_KERNEL);
+ index = ida_alloc(&ida_index, GFP_KERNEL);
if (index < 0) {
ret = index;
goto err_mutex_destroy;
@@ -179,7 +179,7 @@ static int gpio_exar_probe(struct platform_device *pdev)
return 0;

err_destroy:
- ida_simple_remove(&ida_index, index);
+ ida_free(&ida_index, index);
err_mutex_destroy:
mutex_destroy(&exar_gpio->lock);
return ret;
@@ -189,7 +189,7 @@ static int gpio_exar_remove(struct platform_device *pdev)
{
struct exar_gpio_chip *exar_gpio = platform_get_drvdata(pdev);

- ida_simple_remove(&ida_index, exar_gpio->index);
+ ida_free(&ida_index, exar_gpio->index);
mutex_destroy(&exar_gpio->lock);

return 0;
--
2.29.1