[PATCH v4 4/9] iio: accel: kionix-kx022a: annotate the lock helpers

[Rupesh Majhi]

kx022a_turn_off_lock() returns with data->mutex held when it succeeds,
and kx022a_turn_on_unlock() releases it. Annotate both so context
analysis follows the lock into the callers.

Signed-off-by: Rupesh Majhi <zoone.rupert at gmail.com>
---
Cc: Marco Elver <elver at google.com>
Cc: Bart Van Assche <bvanassche at acm.org>

 drivers/iio/accel/kionix-kx022a.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/accel/kionix-kx022a.c b/drivers/iio/accel/kionix-kx022a.c
index add89512af79..a132af87fb5e 100644
--- a/drivers/iio/accel/kionix-kx022a.c
+++ b/drivers/iio/accel/kionix-kx022a.c
@@ -484,6 +484,7 @@ static int __kx022a_turn_on_off(struct kx022a_data *data, bool on)
 }
 
 static int kx022a_turn_off_lock(struct kx022a_data *data)
+	__cond_acquires(0, &data->mutex)
 {
 	int ret;
 
@@ -496,6 +497,7 @@ static int kx022a_turn_off_lock(struct kx022a_data *data)
 }
 
 static int kx022a_turn_on_unlock(struct kx022a_data *data)
+	__releases(&data->mutex)
 {
 	int ret;
 
-- 
2.43.0