ASoC: da7219-aad: fix usage of device_get_named_child_node()

[ Upstream commit e8a6a5ad73acbafd98e8fd3f0cbf6e379771bb76 ]

The documentation for device_get_named_child_node() mentions this
important point:

"
The caller is responsible for calling fwnode_handle_put() on the
returned fwnode pointer.
"

Add fwnode_handle_put() to avoid a leaked reference.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20240426153033.38500-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c
index 6bc068cdcbe2a89e1488530bfa4e6e9c49c0651c..15e5e3eb592b3008fb47ea4372fed71a08375f01 100644 (file)
--- a/sound/soc/codecs/da7219-aad.c
+++ b/sound/soc/codecs/da7219-aad.c
@@ -671,8 +671,10 @@ static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev)
                return NULL;
 
        aad_pdata = devm_kzalloc(dev, sizeof(*aad_pdata), GFP_KERNEL);
-       if (!aad_pdata)
+       if (!aad_pdata) {
+               fwnode_handle_put(aad_np);
                return NULL;
+       }
 
        aad_pdata->irq = i2c->irq;
 
@@ -753,6 +755,8 @@ static struct da7219_aad_pdata *da7219_aad_fw_to_pdata(struct device *dev)
        else
                aad_pdata->adc_1bit_rpt = DA7219_AAD_ADC_1BIT_RPT_1;
 
+       fwnode_handle_put(aad_np);
+
        return aad_pdata;
 }