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-rw-r--r--sound/soc/atmel/mchp-pdmc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/atmel/mchp-pdmc.c b/sound/soc/atmel/mchp-pdmc.c
index 939cd44ebc8a..06dc3c48e7e8 100644
--- a/sound/soc/atmel/mchp-pdmc.c
+++ b/sound/soc/atmel/mchp-pdmc.c
@@ -302,6 +302,9 @@ static int mchp_pdmc_chmap_ctl_put(struct snd_kcontrol *kcontrol,
if (!substream)
return -ENODEV;
+ if (!substream->runtime)
+ return 0; /* just for avoiding error from alsactl restore */
+
map = mchp_pdmc_chmap_get(substream, info);
if (!map)
return -EINVAL;