ASoC: rk817: remove redundant assignment to pointer node, add missing of_node_put

The pointer node is being initialized with a value that is never read and
it is being updated later with a new value.  The initialization is
redundant and can be removed.

The function is missing a of_node_put on node, fix this by adding the call
before returning.

Addresses-Coverity: ("Unused value")
Fixes: 0d6a04da9b25 ("ASoC: Add Rockchip rk817 audio CODEC support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Tested-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20210603113659.82031-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/rk817_codec.c b/sound/soc/codecs/rk817_codec.c
index f771184..d3a19fc 100644 (file)
--- a/sound/soc/codecs/rk817_codec.c
+++ b/sound/soc/codecs/rk817_codec.c
@@ -457,7 +457,7 @@ static const struct snd_soc_component_driver soc_codec_dev_rk817 = {
 static void rk817_codec_parse_dt_property(struct device *dev,
                                         struct rk817_codec_priv *rk817)
 {
-       struct device_node *node = dev->parent->of_node;
+       struct device_node *node;
 
        node = of_get_child_by_name(dev->parent->of_node, "codec");
        if (!node) {
@@ -467,6 +467,8 @@ static void rk817_codec_parse_dt_property(struct device *dev,
 
        rk817->mic_in_differential =
                        of_property_read_bool(node, "rockchip,mic-in-differential");
+
+       of_node_put(node);
 }
 
 static int rk817_platform_probe(struct platform_device *pdev)