diff options
| author | Simon Trimmer <simont@opensource.cirrus.com> | 2023-05-12 15:42:37 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-05-15 10:35:12 +0900 |
| commit | 17082e09b94cfe60bf39088f3d37c1f10e6c5928 (patch) | |
| tree | 05daaa76ff5455a355258ae381ce92172409c9ee /sound | |
| parent | 41c5305cc3d827d2ea686533777a285176ae01a0 (diff) | |
| download | lwn-17082e09b94cfe60bf39088f3d37c1f10e6c5928.tar.gz lwn-17082e09b94cfe60bf39088f3d37c1f10e6c5928.zip | |
ASoC: cs35l56: Prevent unbalanced pm_runtime in dsp_work() on SoundWire
Flush the SoundWire interrupt handler work instead of cancelling it.
When a SoundWire interrupt is triggered the pm_runtime is held
until the work has completed. It's therefore unsafe to cancel
the work, it must be flushed.
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com
Link: https://lore.kernel.org/r/20230512144237.739000-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/cs35l56.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c index 46762f7f1449..d1677d76d018 100644 --- a/sound/soc/codecs/cs35l56.c +++ b/sound/soc/codecs/cs35l56.c @@ -852,10 +852,11 @@ static void cs35l56_dsp_work(struct work_struct *work) */ if (cs35l56->sdw_peripheral) { cs35l56->sdw_irq_no_unmask = true; - cancel_work_sync(&cs35l56->sdw_irq_work); + flush_work(&cs35l56->sdw_irq_work); sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_MASK_1, 0); sdw_read_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_STAT_1); sdw_write_no_pm(cs35l56->sdw_peripheral, CS35L56_SDW_GEN_INT_STAT_1, 0xFF); + flush_work(&cs35l56->sdw_irq_work); } ret = cs35l56_mbox_send(cs35l56, CS35L56_MBOX_CMD_SHUTDOWN); |