Re: [PATCH v1 2/2] gpiolib: of: Drop redundant check in of_mm_gpiochip_remove()

From: Dmitry Torokhov
Date: Wed Nov 09 2022 - 16:13:51 EST


On Wed, Nov 09, 2022 at 05:07:34PM +0200, Andy Shevchenko wrote:
> The callers never call the function with invalid pointer.
> Moreover, compiler quite likely dropped that check anyway
> because we use that pointer before the check.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

Reviewed-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>

> ---
> drivers/gpio/gpiolib-of.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
> index feeb9e8e846d..83997434215e 100644
> --- a/drivers/gpio/gpiolib-of.c
> +++ b/drivers/gpio/gpiolib-of.c
> @@ -963,9 +963,6 @@ void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc)
> {
> struct gpio_chip *gc = &mm_gc->gc;
>
> - if (!mm_gc)
> - return;
> -
> gpiochip_remove(gc);
> iounmap(mm_gc->regs);
> kfree(gc->label);
> --
> 2.35.1
>

--
Dmitry