Re: [RFC PATCH v2 07/22] ASoC: Add SOC USB APIs for adding an USB backend

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+void *snd_soc_usb_get_priv_data(struct device *usbdev)
+{
+	struct snd_soc_usb *ctx;
+
+	if (!usbdev)
+		return NULL;

How could usbdev ever be NULL?
The method is exported to public, valid check should be reasonable
as someone may call it by mistake


+
+	ctx = snd_soc_find_usb_ctx(usbdev);
+
+	return ctx ? ctx->priv_data : NULL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_usb_get_priv_data);
+




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