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ASoC: SOF: topology: cleanup dailinks on widget unload

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We set the cpu_dai capture_ or playback_widget on widget_ready but
never clear them, which leads to failures when unloading/reloading a
topology in modprobe/rmmod tests

BugLink: https://github.com/thesofproject/linux/issues/3535
Fixes: 311ce4fe76 ("ASoC: SOF: Add support for loading topologies")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220406191606.254576-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2022-04-06 14:16:06 -05:00 committed by Mark Brown
parent 770f3d992a
commit 20744617bd
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 43 additions and 0 deletions
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43
sound/soc/sof/topology.c
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@ -1070,6 +1070,46 @@ static int sof_connect_dai_widget(struct snd_soc_component *scomp,
return 0;
}
static void sof_disconnect_dai_widget(struct snd_soc_component *scomp,
struct snd_soc_dapm_widget *w)
{
struct snd_soc_card *card = scomp->card;
struct snd_soc_pcm_runtime *rtd;
struct snd_soc_dai *cpu_dai;
int i;
if (!w->sname)
return;
list_for_each_entry(rtd, &card->rtd_list, list) {
/* does stream match DAI link ? */
if (!rtd->dai_link->stream_name ||
strcmp(w->sname, rtd->dai_link->stream_name))
continue;
switch (w->id) {
case snd_soc_dapm_dai_out:
for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
if (cpu_dai->capture_widget == w) {
cpu_dai->capture_widget = NULL;
break;
}
}
break;
case snd_soc_dapm_dai_in:
for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
if (cpu_dai->playback_widget == w) {
cpu_dai->playback_widget = NULL;
break;
}
}
break;
default:
break;
}
}
}
/* bind PCM ID to host component ID */
static int spcm_bind(struct snd_soc_component *scomp, struct snd_sof_pcm *spcm,
int dir)
@ -1355,6 +1395,9 @@ static int sof_widget_unload(struct snd_soc_component *scomp,
if (dai)
list_del(&dai->list);
sof_disconnect_dai_widget(scomp, widget);
break;
default:
break;