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authorBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-12-04 10:35:00 +0100
committerBartosz Golaszewski <bartosz.golaszewski@linaro.org>2023-12-08 09:25:53 +0100
commitee25fba76acd8324f9de6628872c8c612a684209 (patch)
tree9133043e88c4577cd4169780bd282f0686350a29 /include/linux/gpio
parentb85ea95d086471afb4ad062012a4d73cd328fa86 (diff)
gpiolib: provide gpiochip_dup_line_label()
gpiochip_is_requested() not only has a misleading name but it returns a pointer to a string that is freed when the descriptor is released. Provide a new helper meant to replace it, which returns a copy of the label string instead. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/gpio')
-rw-r--r--include/linux/gpio/driver.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 0aed62f0c633..5ac6dc30c547 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -532,6 +532,7 @@ struct gpio_chip {
};
const char *gpiochip_is_requested(struct gpio_chip *gc, unsigned int offset);
+char *gpiochip_dup_line_label(struct gpio_chip *gc, unsigned int offset);
/**
* for_each_requested_gpio_in_range - iterates over requested GPIOs in a given range