[alsa-devel] [PATCH] ASoC: core: move DAI pre-links initiation to snd_soc_instantiate_card

[Tzung-Bi Shih]

On Tue, Jun 4, 2019 at 1:10 AM Curtis Malainey <cujomalainey at google.com> wrote:
>
> > >  probe_end:
> > > -       if (ret < 0)
> > > +       if (ret < 0 && ret != -EPROBE_DEFER)
> > >                 soc_cleanup_card_resources(card);
> > Should not call soc_cleanup_card_resources() if soc_init_dai_link()
> > returns fail.  Some context has not initialized yet in the case.
> Why not? You need to clean up the platform naming if links fails which
> will causes a use-after-free bug if you don't clean it up.
Some context may have not initialized if soc_init_dai_link() returns
fail.  See v2 https://patchwork.kernel.org/patch/10974149/ if it would
help.