From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx> It's possible for a GPIO chip to not have a parent device (whose properties we inspect for 'gpio-line-names'). In this case we should simply return from devprop_gpiochip_set_names(). Add an appropriate check for this use-case. Fixes: 7cba1a4d5e16 ("gpiolib: generalize devprop_gpiochip_set_names() for device properties") Reported-by: Anders Roxell <anders.roxell@xxxxxxxxxx> Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx> --- drivers/gpio/gpiolib.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index b7b608ef9..ac2c77edc 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -375,6 +375,9 @@ static int devprop_gpiochip_set_names(struct gpio_chip *chip) int ret, i; int count; + if (!dev) + return 0; + count = device_property_string_array_count(dev, "gpio-line-names"); if (count < 0) return 0; -- 2.26.1