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nvmem: 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>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200917134437.16637-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bartosz Golaszewski 2020-09-17 14:44:36 +01:00 committed by Greg Kroah-Hartman
parent 28371cc610
commit 1eb51d6a4f
1 changed files with 3 additions and 3 deletions
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6
drivers/nvmem/core.c
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@ -321,7 +321,7 @@ static void nvmem_release(struct device *dev)
{
struct nvmem_device *nvmem = to_nvmem_device(dev);
ida_simple_remove(&nvmem_ida, nvmem->id);
ida_free(&nvmem_ida, nvmem->id);
gpiod_put(nvmem->wp_gpio);
kfree(nvmem);
}
@ -596,7 +596,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
if (!nvmem)
return ERR_PTR(-ENOMEM);
rval = ida_simple_get(&nvmem_ida, 0, 0, GFP_KERNEL);
rval = ida_alloc(&nvmem_ida, GFP_KERNEL);
if (rval < 0) {
kfree(nvmem);
return ERR_PTR(rval);
@ -608,7 +608,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
nvmem->wp_gpio = gpiod_get_optional(config->dev, "wp",
GPIOD_OUT_HIGH);
if (IS_ERR(nvmem->wp_gpio)) {
ida_simple_remove(&nvmem_ida, nvmem->id);
ida_free(&nvmem_ida, nvmem->id);
rval = PTR_ERR(nvmem->wp_gpio);
kfree(nvmem);
return ERR_PTR(rval);