[07/10] pinctrl: baytrail: use gpiochip_dup_line_label()
Commit Message
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Use the new gpiochip_dup_line_label() helper to safely retrieve the
descriptor label.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
drivers/pinctrl/intel/pinctrl-baytrail.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
Comments
On Wed, Nov 29, 2023 at 03:24:08PM +0100, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
>
> Use the new gpiochip_dup_line_label() helper to safely retrieve the
> descriptor label.
I don't think it will be any collision with other Bay Trail patches,
but I would like to have an immutable branch that I can pull into my tree
(Intel pin control drivers).
@@ -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),