[PATCH v2 08/21] ASoC: codecs: es8328: Move clk acquisition to the bus probe

[Chancel Liu <chancel.liu@oss.nxp.com>]

From: Chancel Liu <chancel.liu@nxp.com>

component->dev is the underlying i2c/spi device whose devres is only
released on physical device removal, not on ASoC card unbind. Getting
the codec clock with devm_clk_get(component->dev, ...) in the component
probe therefore leaks a clk reference on every card bind/unbind cycle.

Move the devm_clk_get() to es8328_probe() (the shared i2c/spi bus level
probe) so the clk reference is tied to the physical device lifetime.

Signed-off-by: Chancel Liu <chancel.liu@nxp.com>
---
 sound/soc/codecs/es8328.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c
index 7d52b5d9d061..37fda2f42b0c 100644
--- a/sound/soc/codecs/es8328.c
+++ b/sound/soc/codecs/es8328.c
@@ -829,14 +829,6 @@ static int es8328_component_probe(struct snd_soc_component *component)
 		return ret;
 	}
 
-	/* Setup clocks */
-	es8328->clk = devm_clk_get(component->dev, NULL);
-	if (IS_ERR(es8328->clk)) {
-		dev_err(component->dev, "codec clock missing or invalid\n");
-		ret = PTR_ERR(es8328->clk);
-		goto clk_fail;
-	}
-
 	ret = clk_prepare_enable(es8328->clk);
 	if (ret) {
 		dev_err(component->dev, "unable to prepare codec clk\n");
@@ -906,6 +898,11 @@ int es8328_probe(struct device *dev, struct regmap *regmap)
 
 	es8328->regmap = regmap;
 
+	es8328->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(es8328->clk))
+		return dev_err_probe(dev, PTR_ERR(es8328->clk),
+				     "codec clock missing or invalid\n");
+
 	for (i = 0; i < ARRAY_SIZE(es8328->supplies); i++)
 		es8328->supplies[i].supply = supply_names[i];
 
-- 
2.50.1