[alsa-devel] [PATCH] ASoC: pcm: Fix DPCM for aux_devs

When we instantiate an aux_dev we use a fake rtd as part of the process which doesn't have a dai_link associated with it. Fix the dpcm startup code to cope with this.

Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- sound/soc/soc-pcm.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index a94512c..a3ea8a7 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -2332,6 +2332,9 @@ static const struct file_operations dpcm_state_fops = {

int soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) { + if (!rtd->dai_link) + return 0; + rtd->debugfs_dpcm_root = debugfs_create_dir(rtd->dai_link->name, rtd->card->debugfs_card_root); if (!rtd->debugfs_dpcm_root) {