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authorBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-12-04 10:35:05 +0100
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-12-08 09:26:32 +0100
commitcaf7e135c297e6fceec0a1476da775aa458b5324 (patch)
tree53f8a805063b7b8fb2ccbfd2967b3b6000496df5 /drivers/pinctrl
parentc76ba937f5ff9b4ee670adbd421be2404745be1f (diff)
pinctrl: nomadik: 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/nomadik/pinctrl-nomadik.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index 863732287b1e..7911353ac97d 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -8,6 +8,7 @@
* Copyright (C) 2011-2013 Linus Walleij <linus.walleij@linaro.org>
*/
#include <linux/bitops.h>
+#include <linux/cleanup.h>
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/err.h>
@@ -917,7 +918,6 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s,
struct pinctrl_dev *pctldev, struct gpio_chip *chip,
unsigned offset, unsigned gpio)
{
- const char *label = gpiochip_is_requested(chip, offset);
struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip);
int mode;
bool is_out;
@@ -934,6 +934,10 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s,
[NMK_GPIO_ALT_C+4] = "altC4",
};
+ char *label = gpiochip_dup_line_label(chip, offset);
+ if (IS_ERR(label))
+ return;
+
clk_enable(nmk_chip->clk);
is_out = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & BIT(offset));
pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & BIT(offset));