Re: [PATCH] gpiolib: allocate memory atomically with a spinlock held

[Linus Walleij]

On Tue, Dec 12, 2023 at 11:55 AM Bartosz Golaszewski <brgl@xxxxxxxx> wrote:

> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>
> We will eventually switch to protecting the GPIO descriptors with a mutex
> but until then, we need to allocate memory for the label copy atomically
> while we're holding the global spinlock.
>
> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Closes: https://lore.kernel.org/linux-gpio/62588146-eed6-42f7-ba26-160226b109fe@moroto.mountain/T/#u
> Fixes: f8d05e276b45 ("gpiolib: remove gpiochip_is_requested()")
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>

Makes sense.
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij