enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/drivers/usb/misc/cypress_cy7c63.c
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@@ -183,6 +183,7 @@
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 {
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 	return read_port(dev, attr, buf, 0, CYPRESS_READ_PORT_ID0);
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 }
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+static DEVICE_ATTR_RW(port0);
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 /* attribute callback handler (read) */
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 static ssize_t port1_show(struct device *dev,
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@@ -190,11 +191,14 @@
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 {
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 	return read_port(dev, attr, buf, 1, CYPRESS_READ_PORT_ID1);
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 }
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-
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-static DEVICE_ATTR_RW(port0);
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-
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 static DEVICE_ATTR_RW(port1);
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+static struct attribute *cypress_attrs[] = {
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+	&dev_attr_port0.attr,
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+	&dev_attr_port1.attr,
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+	NULL,
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+};
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+ATTRIBUTE_GROUPS(cypress);
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 static int cypress_probe(struct usb_interface *interface,
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 			 const struct usb_device_id *id)
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@@ -212,25 +216,10 @@
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 	/* save our data pointer in this interface device */
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 	usb_set_intfdata(interface, dev);
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-	/* create device attribute files */
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-	retval = device_create_file(&interface->dev, &dev_attr_port0);
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-	if (retval)
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-		goto error;
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-	retval = device_create_file(&interface->dev, &dev_attr_port1);
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-	if (retval)
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-		goto error;
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-
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 	/* let the user know that the device is now attached */
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 	dev_info(&interface->dev,
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 		 "Cypress CY7C63xxx device now attached\n");
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 	return 0;
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-
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-error:
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-	device_remove_file(&interface->dev, &dev_attr_port0);
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-	device_remove_file(&interface->dev, &dev_attr_port1);
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-	usb_set_intfdata(interface, NULL);
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-	usb_put_dev(dev->udev);
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-	kfree(dev);
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223
 
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 error_mem:
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 	return retval;
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@@ -242,9 +231,6 @@
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 	dev = usb_get_intfdata(interface);
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-	/* remove device attribute files */
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-	device_remove_file(&interface->dev, &dev_attr_port0);
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-	device_remove_file(&interface->dev, &dev_attr_port1);
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 	/* the intfdata can be set to NULL only after the
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 	 * device files have been removed */
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 	usb_set_intfdata(interface, NULL);
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@@ -262,6 +248,7 @@
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 	.probe = cypress_probe,
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 	.disconnect = cypress_disconnect,
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 	.id_table = cypress_table,
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+	.dev_groups = cypress_groups,
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 };
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 module_usb_driver(cypress_driver);