i2c: simplify with scoped for each OF child loop

Use scoped for_each_child_of_node_scoped() when iterating over device
nodes to make code a bit simpler.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

drivers/i2c/i2c-core-slave.c

@@ -109,15 +109,12 @@ EXPORT_SYMBOL_GPL(i2c_slave_event);
 bool i2c_detect_slave_mode(struct device *dev)
 {
 	if (IS_BUILTIN(CONFIG_OF) && dev->of_node) {
-		struct device_node *child;
 		u32 reg;
 
-		for_each_child_of_node(dev->of_node, child) {
+		for_each_child_of_node_scoped(dev->of_node, child) {
 			of_property_read_u32(child, "reg", &reg);
-			if (reg & I2C_OWN_SLAVE_ADDRESS) {
-				of_node_put(child);
+			if (reg & I2C_OWN_SLAVE_ADDRESS)
 				return true;
-			}
 		}
 	} else if (IS_BUILTIN(CONFIG_ACPI) && ACPI_HANDLE(dev)) {
 		dev_dbg(dev, "ACPI slave is not supported yet\n");