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pinctrl: sppctl: use gpiochip_dup_line_label()

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Use the new gpiochip_dup_line_label() helper to safely retrieve the
descriptor label.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2023-12-04 10:35:07 +01:00
parent c73505c8a0
commit 069ced2206
1 changed files with 5 additions and 5 deletions
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10
drivers/pinctrl/sunplus/sppctl.c
View file

@ -4,6 +4,7 @@
* Copyright (C) Sunplus Tech / Tibbo Tech.
*/
#include <linux/cleanup.h>
#include <linux/bitfield.h>
#include <linux/device.h>
#include <linux/err.h>
@ -500,16 +501,15 @@ static int sppctl_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
static void sppctl_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
{
const char *label;
int i;
for (i = 0; i < chip->ngpio; i++) {
label = gpiochip_is_requested(chip, i);
if (!label)
label = "";
char *label __free(kfree) = gpiochip_dup_line_label(chip, i);
if (IS_ERR(label))
continue;
seq_printf(s, " gpio-%03d (%-16.16s | %-16.16s)", i + chip->base,
chip->names[i], label);
chip->names[i], label ?: "");
seq_printf(s, " %c", sppctl_gpio_get_direction(chip, i) ? 'I' : 'O');
seq_printf(s, ":%d", sppctl_gpio_get(chip, i));
seq_printf(s, " %s", sppctl_first_get(chip, i) ? "gpi" : "mux");