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pinctrl: baytrail: 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>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2023-12-04 10:35:06 +01:00
parent caf7e135c2
commit c73505c8a0
1 changed files with 6 additions and 5 deletions
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11
drivers/pinctrl/intel/pinctrl-baytrail.c
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@ -9,6 +9,7 @@
#include <linux/acpi.h>
#include <linux/array_size.h>
#include <linux/bitops.h>
#include <linux/cleanup.h>
#include <linux/gpio/driver.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@ -1173,7 +1174,6 @@ static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
const char *pull_str = NULL;
const char *pull = NULL;
unsigned long flags;
const char *label;
unsigned int pin;
pin = vg->soc->pins[i].number;
@ -1200,9 +1200,10 @@ static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
seq_printf(s, "Pin %i: can't retrieve community\n", pin);
continue;
}
label = gpiochip_is_requested(chip, i);
if (!label)
label = "Unrequested";
char *label __free(kfree) = gpiochip_dup_line_label(chip, i);
if (IS_ERR(label))
continue;
switch (conf0 & BYT_PULL_ASSIGN_MASK) {
case BYT_PULL_ASSIGN_UP:
@ -1231,7 +1232,7 @@ static void byt_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
seq_printf(s,
" gpio-%-3d (%-20.20s) %s %s %s pad-%-3d offset:0x%03x mux:%d %s%s%s",
pin,
label,
label ?: "Unrequested",
val & BYT_INPUT_EN ? " " : "in",
val & BYT_OUTPUT_EN ? " " : "out",
str_hi_lo(val & BYT_LEVEL),