Re: [PATCH] ALSA: hda/cs8409: Fix possible NULL dereference

[Takashi Iwai <tiwai@xxxxxxx>]

On Fri, 11 Oct 2024 00:16:45 +0200,
Murad Masimov wrote:
> 
> If snd_hda_gen_add_kctl fails to allocate memory and returns NULL, then
> NULL pointer dereference will occur in the next line.
> 
> Since dolphin_fixups function is a hda_fixup function which is not supposed
> to return any errors, add simple check before dereference, ignore the fail.
> 
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
> 
> Fixes: 20e507724113 ("ALSA: hda/cs8409: Add support for dolphin")
> Signed-off-by: Murad Masimov <m.masimov@xxxxxxxxx>

Thanks, applied.


Takashi