Re: [PATCH V2 3/5] gpio: of: Return error if gpio hog configuration failed

[Linus Walleij]

On Fri, Mar 11, 2016 at 2:43 PM, Laxman Dewangan <ldewangan@xxxxxxxxxx> wrote:

> If GPIO hog configuration failed while adding OF based
> gpiochip() then return the error instead of ignoring it.
>
> This helps of properly handling the gpio driver dependency.
>
> When adding the gpio hog nodes for NVIDIA's Tegra210 platforms,
> the gpio_hogd() fails with EPROBE_DEFER because pinctrl is not
> ready at this time and gpio_request() for Tegra GPIO driver
> returns error. The error was not causing the Tegra GPIO driver
> to fail as the error was getting ignored.
>
> Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx>
> Cc: Benoit Parrot <bparrot@xxxxxx>
> Cc: Alexandre Courbot <acourbot@xxxxxxxxxx>
> Reviewed-by: Thierry Reding <treding@xxxxxxxxxx>

Rebased and applied this patch FWIW.
This is a fair and square bug fix so need to go in
no matter what happens with the hog patches.

Yours,
Linus Walleij