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authorBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-12-04 12:35:07 +0300
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-12-08 11:26:37 +0300
commit069ced2206d23e56b89ed118e17a8a71a05e0ca3 (patch)
tree7ffe9fce40a316e5f6804549d45fcf18b95a70a4 /drivers/pinctrl
parentc73505c8a001f8ce63b8ad92c9cd0176fe3c22a4 (diff)
downloadlinux-069ced2206d23e56b89ed118e17a8a71a05e0ca3.tar.xz
pinctrl: sppctl: use gpiochip_dup_line_label()
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>
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/sunplus/sppctl.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/pinctrl/sunplus/sppctl.c b/drivers/pinctrl/sunplus/sppctl.c
index bb5ef391dbe4..ae156f779a16 100644
--- a/drivers/pinctrl/sunplus/sppctl.c
+++ b/drivers/pinctrl/sunplus/sppctl.c
@@ -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");