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Subject[PATCH 06/23] gpiolib: switch to simpler IDA interface
Date
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/gpiolib.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 15c99cf560ee..591777bc2285 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -471,7 +471,7 @@ static void gpiodevice_release(struct device *dev)
struct gpio_device *gdev = dev_get_drvdata(dev);

list_del(&gdev->list);
- ida_simple_remove(&gpio_ida, gdev->id);
+ ida_free(&gpio_ida, gdev->id);
kfree_const(gdev->label);
kfree(gdev->descs);
kfree(gdev);
@@ -582,7 +582,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
gc->of_node = gdev->dev.of_node;
#endif

- gdev->id = ida_simple_get(&gpio_ida, 0, 0, GFP_KERNEL);
+ gdev->id = ida_alloc(&gpio_ida, GFP_KERNEL);
if (gdev->id < 0) {
ret = gdev->id;
goto err_free_gdev;
@@ -753,7 +753,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
err_free_descs:
kfree(gdev->descs);
err_free_ida:
- ida_simple_remove(&gpio_ida, gdev->id);
+ ida_free(&gpio_ida, gdev->id);
err_free_gdev:
/* failures here can mean systems won't boot... */
pr_err("%s: GPIOs %d..%d (%s) failed to register, %d\n", __func__,
--
2.26.1
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