[PATCH AUTOSEL 5.15 04/28] ASoC: rt711-sdca-sdw: fix calibrate mutex initialization

Sasha Levin
2022-07-14T04:29:43Z

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit ed0a7fb29c9fd4f53eeb37d1fe2354df7a038047 ]

In codec driver bind/unbind test, the following warning is thrown:

DEBUG_LOCKS_WARN_ON(lock->magic != lock)
...
[ 699.182495] rt711_sdca_jack_init+0x1b/0x1d0 [snd_soc_rt711_sdca]
[ 699.182498] rt711_sdca_set_jack_detect+0x3b/0x90 [snd_soc_rt711_sdca]
[ 699.182500] snd_soc_component_set_jack+0x24/0x50 [snd_soc_core]

A quick check in the code shows that the 'calibrate_mutex' used by
this driver are not initialized at probe time. Moving the
initialization to the probe removes the issue.

BugLink: https://github.com/thesofproject/linux/issues/3644
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220606203752.144159-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/rt711-sdca-sdw.c | 3 +++
sound/soc/codecs/rt711-sdca.c | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt711-sdca-sdw.c b/sound/soc/codecs/rt711-sdca-sdw.c
index c722a2b0041f..a085b2f530aa 100644
--- a/sound/soc/codecs/rt711-sdca-sdw.c
+++ b/sound/soc/codecs/rt711-sdca-sdw.c
@@ -373,6 +373,9 @@ static int rt711_sdca_sdw_remove(struct sdw_slave *slave)
if (rt711->first_hw_init)
pm_runtime_disable(&slave->dev);

+ mutex_destroy(&rt711->calibrate_mutex);
+ mutex_destroy(&rt711->disable_irq_lock);
+
return 0;
}

diff --git a/sound/soc/codecs/rt711-sdca.c b/sound/soc/codecs/rt711-sdca.c
index 2e992589f1e4..f041e036b05f 100644
--- a/sound/soc/codecs/rt711-sdca.c
+++ b/sound/soc/codecs/rt711-sdca.c
@@ -1411,6 +1411,7 @@ int rt711_sdca_init(struct device *dev, struct regmap *regmap,
rt711->regmap = regmap;
rt711->mbq_regmap = mbq_regmap;

+ mutex_init(&rt711->calibrate_mutex);
mutex_init(&rt711->disable_irq_lock);

/*
@@ -1549,7 +1550,6 @@ int rt711_sdca_io_init(struct device *dev, struct sdw_slave *slave)
rt711_sdca_jack_detect_handler);
INIT_DELAYED_WORK(&rt711->jack_btn_check_work,
rt711_sdca_btn_check_handler);
- mutex_init(&rt711->calibrate_mutex);
}

/* calibration */
--
2.35.1