gpiolib: switch to simpler IDA interface

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>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 1300650dc3084178a37df9be94080e29095f0c95..03543b8f7ab46bc74faac686cda19b3d6eaba29b 100644 (file)
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -426,7 +426,7 @@ 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);
@@ -537,7 +537,7 @@ 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;
@@ -705,7 +705,7 @@ err_free_label:
 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__,