not sure what's the best place to call free.
1.
static int snd_pcm_extplug_close(snd_pcm_t *pcm)
{
extplug_priv_t *ext = pcm->private_data;
snd_pcm_close(ext->plug.gen.slave);
clear_ext_params(ext);
if (ext->data->callback->close)
{
ext->data->callback->close(ext->data);
}
if (ext->data)
free(ext->data);
free(ext);
return 0;
}
2.
366 static int upmix_close(snd_pcm_extplug_t *ext)
367 {
368 snd_pcm_upmix_t *mix = (snd_pcm_upmix_t *)ext;
369 free(mix->delayline[0]);
370 free(mix->delayline[1]);
free(mix);
371 return 0;
372 }
3. apply method in alsa-plugins/maemo/alsa-dsp.c:748:static void
alsa_dsp_descructor(void) __attribute__ ((destructor));
with each methods, there are some plugins pcm_ files affected.
2017-08-30 16:17 GMT+08:00 Takashi Iwai <tiwai@xxxxxxx>:
> On Wed, 30 Aug 2017 09:59:59 +0200,
> boozer asm wrote:
> >
> > Hi Takashi,
> >
> > i think mix is same as ext->data instead ext. ext is of extplug_priv_t *;
> > so it is definitely not mix which is of snd_pcm_upmix_t
> >
> > 33 struct snd_pcm_upmix {
> > 34 snd_pcm_extplug_t ext;
> >
> > typedef struct snd_pcm_extplug_priv {
> > snd_pcm_plugin_t plug;
> > snd_pcm_extplug_t *data;
> > between upmix and extplug_priv, there is a gap plug, which forbid ext to
> be
> > converted to mix directly.
> > so free(ext) in snd_pcm_extplug_close does NOT promise it will free mix
> too.
>
> OK, then care to submit patches?
>
>
> thanks,
>
> Takashi
>
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