Re: [PATCH 1/5] gpio: pca954x: fix undefined error code from remove

From: Linus Walleij
Date: Wed Sep 07 2016 - 10:15:48 EST


On Fri, Aug 26, 2016 at 5:25 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:

> The recent addition of the regulator support has led to the pca953x_remove
> function returning uninitialized data when no platform data pointer is
> provided, as gcc warns when using -Wmaybe-uninitialized:
>
> drivers/gpio/gpio-pca953x.c: In function 'pca953x_remove':
> drivers/gpio/gpio-pca953x.c:860:9: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
>
> This restores the previous behavior, returning 0 on success.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> Fixes: e23efa311110 ("gpio: pca954x: Add vcc regulator and enable it")
> Cc: Phil Reid <preid@xxxxxxxxxxxxxxxxx>
> ---
> Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Cc: Alexandre Courbot <gnurou@xxxxxxxxx>
> Cc: linux-gpio@xxxxxxxxxxxxxxx

Patch applied with Phil's ACK.

Yours,
Linus Walleij