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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/sound/soc/soc-devres.c
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@@ -9,9 +9,48 @@
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 #include <sound/soc.h>
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 #include <sound/dmaengine_pcm.h>
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11
 
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+static void devm_dai_release(struct device *dev, void *res)
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+{
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+	snd_soc_unregister_dai(*(struct snd_soc_dai **)res);
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+}
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+
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+/**
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+ * devm_snd_soc_register_dai - resource-managed dai registration
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+ * @dev: Device used to manage component
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+ * @component: The component the DAIs are registered for
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+ * @dai_drv: DAI driver to use for the DAI
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+ * @legacy_dai_naming: if %true, use legacy single-name format;
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+ *	if %false, use multiple-name format;
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+ */
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+struct snd_soc_dai *devm_snd_soc_register_dai(struct device *dev,
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+					      struct snd_soc_component *component,
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+					      struct snd_soc_dai_driver *dai_drv,
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+					      bool legacy_dai_naming)
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+{
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+	struct snd_soc_dai **ptr;
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+	struct snd_soc_dai *dai;
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+
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+	ptr = devres_alloc(devm_dai_release, sizeof(*ptr), GFP_KERNEL);
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+	if (!ptr)
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+		return NULL;
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+
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+	dai = snd_soc_register_dai(component, dai_drv, legacy_dai_naming);
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+	if (dai) {
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+		*ptr = dai;
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+		devres_add(dev, ptr);
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+	} else {
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+		devres_free(ptr);
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+	}
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+
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+	return dai;
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+}
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+EXPORT_SYMBOL_GPL(devm_snd_soc_register_dai);
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+
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 static void devm_component_release(struct device *dev, void *res)
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 {
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-	snd_soc_unregister_component(*(struct device **)res);
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+	const struct snd_soc_component_driver **cmpnt_drv = res;
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+
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+	snd_soc_unregister_component_by_driver(dev, *cmpnt_drv);
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 }
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55
 
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 /**
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@@ -28,7 +67,7 @@
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 			 const struct snd_soc_component_driver *cmpnt_drv,
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 			 struct snd_soc_dai_driver *dai_drv, int num_dai)
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 {
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-	struct device **ptr;
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+	const struct snd_soc_component_driver **ptr;
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 	int ret;
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 	ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL);
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@@ -37,7 +76,7 @@
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 	ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai);
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 	if (ret == 0) {
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-		*ptr = dev;
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+		*ptr = cmpnt_drv;
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 		devres_add(dev, ptr);
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 	} else {
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 		devres_free(ptr);