6.6-stable review patch. If anyone has any objections, please let me know.
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From: Andrei Simion andrei.simion@microchip.com
[ Upstream commit 09cfc6a532d249a51d3af5022d37ebbe9c3d31f6 ]
Update the driver to prevent alsa-restore.service from failing when reading data from /var/lib/alsa/asound.state at boot. Ensure that the restoration of ALSA mixer configurations is skipped if substream->runtime is NULL.
Fixes: 50291652af52 ("ASoC: atmel: mchp-pdmc: add PDMC driver") Signed-off-by: Andrei Simion andrei.simion@microchip.com Link: https://patch.msgid.link/20240924081237.50046-1-andrei.simion@microchip.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/atmel/mchp-pdmc.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/sound/soc/atmel/mchp-pdmc.c b/sound/soc/atmel/mchp-pdmc.c index dcc4e14b3dde2..206bbb5aaab5d 100644 --- a/sound/soc/atmel/mchp-pdmc.c +++ b/sound/soc/atmel/mchp-pdmc.c @@ -285,6 +285,9 @@ 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;