iio: dac: ad7303: 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/ad7303.c b/drivers/iio/dac/ad7303.c
index a88cc639047df2f98da2f89f5ccd3b6b7a35677b..1c2960fa97432b66039aa1d6d10b8b4d3d27c1d5 100644 (file)
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -218,7 +218,9 @@ static int ad7303_probe(struct spi_device *spi)
 
        st->spi = spi;
 
-       mutex_init(&st->lock);
+       ret = devm_mutex_init(&spi->dev, &st->lock);
+       if (ret)
+               return ret;
 
        st->vdd_reg = devm_regulator_get(&spi->dev, "Vdd");
        if (IS_ERR(st->vdd_reg))