iio: imu: adis: add cleanup based lock helpers

Add two new lock helpers that make use of the cleanup guard() and
scoped_guard() macros. Thus, users won't have to worry about unlocking
which is less prone to errors and allows for simpler error paths.

Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20240618-dev-iio-adis-cleanup-v1-3-bd93ce7845c7@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h
index 93dad627378fd6e05ca8b70678c65da654f330c1..bc7332d12c44039aa3f848811c880a6a33007fc2 100644 (file)
--- a/include/linux/iio/imu/adis.h
+++ b/include/linux/iio/imu/adis.h
@@ -403,6 +403,10 @@ static inline int adis_check_status(struct adis *adis)
        return __adis_check_status(adis);
 }
 
+#define adis_dev_auto_lock(adis)       guard(mutex)(&(adis)->state_lock)
+#define adis_dev_auto_scoped_lock(adis) \
+       scoped_guard(mutex, &(adis)->state_lock)
+
 static inline void adis_dev_lock(struct adis *adis)
 {
        mutex_lock(&adis->state_lock);