diff options
Diffstat (limited to 'drivers/gpio/gpio-wm8994.c')
| -rw-r--r-- | drivers/gpio/gpio-wm8994.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-wm8994.c b/drivers/gpio/gpio-wm8994.c index f4a474cef32d..bf05c9b5882b 100644 --- a/drivers/gpio/gpio-wm8994.c +++ b/drivers/gpio/gpio-wm8994.c @@ -8,6 +8,7 @@ * */ +#include <linux/cleanup.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/module.h> @@ -193,18 +194,20 @@ static void wm8994_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) for (i = 0; i < chip->ngpio; i++) { int gpio = i + chip->base; int reg; - const char *label; /* We report the GPIO even if it's not requested since * we're also reporting things like alternate * functions which apply even when the GPIO is not in * use as a GPIO. */ - label = gpiochip_is_requested(chip, i); - if (!label) - label = "Unrequested"; + char *label __free(kfree) = gpiochip_dup_line_label(chip, i); + if (IS_ERR(label)) { + dev_err(wm8994->dev, "Failed to duplicate label\n"); + continue; + } - seq_printf(s, " gpio-%-3d (%-20.20s) ", gpio, label); + seq_printf(s, " gpio-%-3d (%-20.20s) ", gpio, + label ?: "Unrequested"); reg = wm8994_reg_read(wm8994, WM8994_GPIO_1 + i); if (reg < 0) { |