iio: dac: ad3552r: Use devm_mutex_init()

Use devm_mutex_init() which is helpful with CONFIG_DEBUG_MUTEXES.

Signed-off-by: David Carlier <devnexen@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/dac/ad3552r.c b/drivers/iio/dac/ad3552r.c
index f206bba3a701aa18f31c6d6a8e4e8e99bb727f42..16db94fef9d42cb973783dbbe9d6d9ecebaf5742 100644 (file)
--- a/drivers/iio/dac/ad3552r.c
+++ b/drivers/iio/dac/ad3552r.c
@@ -628,7 +628,9 @@ static int ad3552r_probe(struct spi_device *spi)
        if (!dac->model_data)
                return -EINVAL;
 
-       mutex_init(&dac->lock);
+       err = devm_mutex_init(&spi->dev, &dac->lock);
+       if (err)
+               return err;
 
        err = ad3552r_init(dac);
        if (err)