[PATCH 5.12 603/700] ASoC: rt5682: Fix a problem with error handling in the io init function of the soundwire

From: Greg Kroah-Hartman
Date: Mon Jul 12 2021 - 04:04:59 EST


From: Oder Chiou <oder_chiou@xxxxxxxxxxx>

[ Upstream commit 9266d95405ae0c078f188ec8bca3a004631be429 ]

The device checking error should be a jump to pm_runtime_put_autosuspend()
as done before returning value.

Fixes: 867f8d18df4f ('ASoC: rt5682: fix getting the wrong device id when the suspend_stress_test')
Reviewed-by: Bard Liao <bard.liao@xxxxxxxxx>
Signed-off-by: Oder Chiou <oder_chiou@xxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210607222239.582139-13-pierre-louis.bossart@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/soc/codecs/rt5682-sdw.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c
index 6bf1b4c31296..2b0f02e6c977 100644
--- a/sound/soc/codecs/rt5682-sdw.c
+++ b/sound/soc/codecs/rt5682-sdw.c
@@ -408,9 +408,11 @@ static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
usleep_range(30000, 30005);
loop--;
}
+
if (val != DEVICE_ID) {
dev_err(dev, "Device with ID register %x is not rt5682\n", val);
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_nodev;
}

if (rt5682->first_hw_init) {
@@ -486,10 +488,11 @@ reinit:
rt5682->hw_init = true;
rt5682->first_hw_init = true;

+err_nodev:
pm_runtime_mark_last_busy(&slave->dev);
pm_runtime_put_autosuspend(&slave->dev);

- dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
+ dev_dbg(&slave->dev, "%s hw_init complete: %d\n", __func__, ret);

return ret;
}
--
2.30.2