2022-11-02 15:03:20

by Ramona Bolboaca

[permalink] [raw]
Subject: [PATCH 3/8] iio: gyro: adis16136: Fix deadlock in probe

Use __adis_initial_startup instead of adis_initial_startup to
avoid deadlock.
When using adis_initial_startup mutex_lock is called twice,
without releasing it (once inside adis_initial_startup and
once inside adis_enable_irq).

Fixes: 100bfa38c8cb ("iio: imu: adis[16480]: group RW into a single lock in adis_enable_irq()")
Signed-off-by: Ramona Bolboaca <[email protected]>
---
drivers/iio/gyro/adis16136.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c
index 71295709f2b9..c95cf41be34b 100644
--- a/drivers/iio/gyro/adis16136.c
+++ b/drivers/iio/gyro/adis16136.c
@@ -429,7 +429,7 @@ static int adis16136_initial_setup(struct iio_dev *indio_dev)
uint16_t prod_id;
int ret;

- ret = adis_initial_startup(&adis16136->adis);
+ ret = __adis_initial_startup(&adis16136->adis);
if (ret)
return ret;

--
2.25.1