fsi: Move master attributes to fsi-master class

Populate fsi_master_class->dev_attrs with the existing attribute
definitions, so we don't need to explicitly register.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Alistair Popple <alistair@popple.id.au>
Link: https://lore.kernel.org/r/20191108051945.7109-3-joel@jms.id.auSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/fsi/fsi-core.c

@@ -1241,8 +1241,17 @@ static ssize_t master_break_store(struct device *dev,
 
 static DEVICE_ATTR(break, 0200, NULL, master_break_store);
 
+static struct attribute *master_attrs[] = {
+	&dev_attr_break.attr,
+	&dev_attr_rescan.attr,
+	NULL
+};
+
+ATTRIBUTE_GROUPS(master);
+
 struct class fsi_master_class = {
 	.name = "fsi-master",
+	.dev_groups = master_groups,
 };
 
 int fsi_master_register(struct fsi_master *master)
@@ -1261,20 +1270,6 @@ int fsi_master_register(struct fsi_master *master)
 		return rc;
 	}
 
-	rc = device_create_file(&master->dev, &dev_attr_rescan);
-	if (rc) {
-		device_del(&master->dev);
-		ida_simple_remove(&master_ida, master->idx);
-		return rc;
-	}
-
-	rc = device_create_file(&master->dev, &dev_attr_break);
-	if (rc) {
-		device_del(&master->dev);
-		ida_simple_remove(&master_ida, master->idx);
-		return rc;
-	}
-
 	np = dev_of_node(&master->dev);
 	if (!of_property_read_bool(np, "no-scan-on-init")) {
 		mutex_lock(&master->scan_lock);