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gpio: tangier: calculate number of ctx using temporary variable

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Utilize a temporary variable to calculate number of ctx from ngpio
inside ->probe() implementation.
While at it, include math.h for using DIV_ROUND_UP().

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Raag Jadav 2023-05-22 10:28:06 +05:30 committed by Bartosz Golaszewski
parent b41cabb7be
commit 3b8d8ccc39
1 changed files with 3 additions and 1 deletions
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4
drivers/gpio/gpio-tangier.c
View file

@ -16,6 +16,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/math.h>
#include <linux/module.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/spinlock.h>
@ -428,10 +429,11 @@ static int tng_gpio_add_pin_ranges(struct gpio_chip *chip)
int devm_tng_gpio_probe(struct device *dev, struct tng_gpio *gpio)
{
const struct tng_gpio_info *info = &gpio->info;
size_t nctx = DIV_ROUND_UP(info->ngpio, 32);
struct gpio_irq_chip *girq;
int ret;
gpio->ctx = devm_kcalloc(dev, DIV_ROUND_UP(info->ngpio, 32), sizeof(*gpio->ctx), GFP_KERNEL);
gpio->ctx = devm_kcalloc(dev, nctx, sizeof(*gpio->ctx), GFP_KERNEL);
if (!gpio->ctx)
return -ENOMEM;