iio: dac: ad5758: 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/ad5758.c b/drivers/iio/dac/ad5758.c
index 4ed4fda76ea97fb1a18f81856f367c0a4f0d397b..8e6fb46cce4dd0d1a1d988069fedeb437d0fcb35 100644 (file)
--- a/drivers/iio/dac/ad5758.c
+++ b/drivers/iio/dac/ad5758.c
@@ -851,7 +851,9 @@ static int ad5758_probe(struct spi_device *spi)
 
        st->spi = spi;
 
-       mutex_init(&st->lock);
+       ret = devm_mutex_init(&spi->dev, &st->lock);
+       if (ret)
+               return ret;
 
        indio_dev->name = spi_get_device_id(spi)->name;
        indio_dev->info = &ad5758_info;