From 7bdbd1eccc9fb3875f33af1a2257001128824e81 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Thu, 18 Jul 2019 15:51:01 +0900
Subject: [PATCH] gpio: refactor gpiochip_allocate_mask() with bitmap_alloc()
Git-commit: 7bdbd1eccc9fb3875f33af1a2257001128824e81
Patch-mainline: v5.4-rc1
References: jsc#SLE-12730
Refactor gpiochip_allocate_mask() slightly by using bitmap_alloc().
I used bitmap_free() for the corresponding free parts. Actually,
bitmap_free() is a wrapper of kfree(), but I did this for consistency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Link: https://lore.kernel.org/r/20190718065101.26994-1-yamada.masahiro@socionext.com
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 20f13129cdaa..537a37a89891 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -351,7 +351,7 @@ static unsigned long *gpiochip_allocate_mask(struct gpio_chip *chip)
{
unsigned long *p;
- p = kmalloc_array(BITS_TO_LONGS(chip->ngpio), sizeof(*p), GFP_KERNEL);
+ p = bitmap_alloc(chip->ngpio, GFP_KERNEL);
if (!p)
return NULL;
@@ -385,7 +385,7 @@ static int gpiochip_init_valid_mask(struct gpio_chip *gpiochip)
static void gpiochip_free_valid_mask(struct gpio_chip *gpiochip)
{
- kfree(gpiochip->valid_mask);
+ bitmap_free(gpiochip->valid_mask);
gpiochip->valid_mask = NULL;
}
@@ -1620,7 +1620,7 @@ static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gpiochip)
static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip)
{
- kfree(gpiochip->irq.valid_mask);
+ bitmap_free(gpiochip->irq.valid_mask);
gpiochip->irq.valid_mask = NULL;
}
--
2.16.4