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06863620ed
gpiochip_get_desc() takes a u16 hwnum, but it turns out most users don't respect that and usually pass an unsigned int. Since implicit casting to a smaller type is dangerous - let's change the type of hwnum to unsigned int in gpiochip_get_desc() and in gpiochip_request_own_desc() where the size of hwnum is not respected either and who's a user of the former. This is safe as we then check the hwnum against the number of lines before proceeding in gpiochip_get_desc(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>