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[2/5] ALSA: hda/tas2781: add lock to system_suspend

Message ID c666da13d4bc48cd1ab1357479e0c6096541372c.1709918447.git.soyer@irl.hu (mailing list archive)
State Accepted
Commit c58e6ed55a1bb9811d6d936d001b068bb0419467
Headers show
Series ALSA: hda/tas2781: restore power state after system_resume | expand

Commit Message

Gergo Koteles March 8, 2024, 5:41 p.m. UTC 
Add the missing lock around tasdevice_tuning_switch().

Fixes: 5be27f1e3ec9 ("ALSA: hda/tas2781: Add tas2781 HDA driver")
Signed-off-by: Gergo Koteles <soyer@irl.hu>
---
 sound/pci/hda/tas2781_hda_i2c.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/sound/pci/hda/tas2781_hda_i2c.c b/sound/pci/hda/tas2781_hda_i2c.c
index ee3e0afc9b31..750e49fbb91e 100644
--- a/sound/pci/hda/tas2781_hda_i2c.c
+++ b/sound/pci/hda/tas2781_hda_i2c.c
@@ -885,9 +885,13 @@  static int tas2781_system_suspend(struct device *dev)
 	if (ret)
 		return ret;
 
+	mutex_lock(&tas_hda->priv->codec_lock);
+
 	/* Shutdown chip before system suspend */
 	tasdevice_tuning_switch(tas_hda->priv, 1);
 
+	mutex_unlock(&tas_hda->priv->codec_lock);
+
 	/*
 	 * Reset GPIO may be shared, so cannot reset here.
 	 * However beyond this point, amps may be powered down.