On Tue, Sep 5, 2023 at 8:53 PM Bartosz Golaszewski <brgl@xxxxxxxx> wrote: > From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> > > gpiochip_find() is wrong and its kernel doc is misleading as the > function doesn't return a reference to the gpio_chip but just a raw > pointer. The chip itself is not guaranteed to stay alive, in fact it can > be deleted at any point. Also: other than GPIO drivers themselves, > nobody else has any business accessing gpio_chip structs. > > Provide a new gpio_device_find() function that returns a real reference > to the opaque gpio_device structure that is guaranteed to stay alive for > as long as there are active users of it. > > Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Yours, Linus Walleij
