Re: [PATCH 07/10] ASoC: cs42l42: Split I2C identity into separate module

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On 09/09/2022 14:53, Martin Povišer wrote:
+static int cs42l42_i2c_probe(struct i2c_client *i2c_client)
+{
+	struct device *dev = &i2c_client->dev;
+	struct cs42l42_private *cs42l42;
+	struct regmap *regmap;
+	int ret;
+
+	cs42l42 = devm_kzalloc(dev, sizeof(*cs42l42), GFP_KERNEL);
+	if (!cs42l42)
+		return -ENOMEM;
+
+	regmap = devm_regmap_init_i2c(i2c_client, &cs42l42_regmap);
+	if (IS_ERR(regmap)) {
+		ret = PTR_ERR(regmap);
+		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
+		return ret;
+	}
+
+	cs42l42->dev = dev;
+	cs42l42->regmap = regmap;
+	cs42l42->irq = i2c_client->irq;
+
+	ret = cs42l42_common_probe(cs42l42, &cs42l42_soc_component, &cs42l42_dai);
+	if (ret)
+		return ret;
+
+	ret = cs42l42_init(cs42l42);
+	if (ret)
+		cs42l42_common_remove(cs42l42);

This introduces a bug that regulator_bulk_disable() is called
twice if there is an error.

cs42l42_init() was supposed to clean up if it returns an error, which
it nearly does, but my original patch is missing the call to free_irq()
in the error paths of cs42l42_init().



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