2022-11-02 15:03:38

by Ramona Bolboaca

[permalink] [raw]
Subject: [PATCH 2/8] iio: accel: adis16209: 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/accel/adis16209.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/accel/adis16209.c b/drivers/iio/accel/adis16209.c
index 5a9c6e2296f1..0035e4f4db63 100644
--- a/drivers/iio/accel/adis16209.c
+++ b/drivers/iio/accel/adis16209.c
@@ -291,7 +291,7 @@ static int adis16209_probe(struct spi_device *spi)
if (ret)
return ret;

- ret = adis_initial_startup(st);
+ ret = __adis_initial_startup(st);
if (ret)
return ret;

--
2.25.1