[PATCH] pinctrl: single: fix potential NULL dereference

[Linus Walleij]

On Fri, Nov 18, 2022 at 11:43 AM Maxim Korotkov
<korotkov.maxim.s at gmail.com> wrote:

> Added checking of pointer "function" in pcs_set_mux().
> pinmux_generic_get_function() can return NULL and the pointer
> "function" was dereferenced without checking against NULL.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: 571aec4df5b7 ("pinctrl: single: Use generic pinmux helpers for managing functions")
> Signed-off-by: Maxim Korotkov <korotkov.maxim.s at gmail.com>

Patch applied for fixes.

Yours,
Linus Walleij