In the success path of iio_device_claim_buffer_mode(), mutex_unlock()
should be called before return.
Fixes: e6dad5edfb8c ("iio: core: introduce iio_device_{claim|release}_buffer_mode() APIs")
Signed-off-by: Peng Wu <wupeng58@xxxxxxxxxx>
---
drivers/iio/industrialio-core.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 52e690f031cb..88987cdc9e3f 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -2102,8 +2102,10 @@ int iio_device_claim_buffer_mode(struct iio_dev *indio_dev)
mutex_lock(&iio_dev_opaque->mlock);
- if (iio_buffer_enabled(indio_dev))
+ if (iio_buffer_enabled(indio_dev)) {
+ mutex_unlock(&iio_dev_opaque->mlock);
return 0;
+ }
mutex_unlock(&iio_dev_opaque->mlock);
return -EBUSY;
--
2.17.1
