clk: s2mps11: Use of_get_child_by_name

of_find_node_by_name() walks over all nodes and can thus walk outside of
the parent node. Use of_get_child_by_name() instead.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Mike Turquette <[e-mail]>

drivers/clk/clk-s2mps11.c

···
 	if (!iodev->dev->of_node)
 		return ERR_PTR(-EINVAL);
 
-	clk_np = of_find_node_by_name(iodev->dev->of_node, "clocks");
+	clk_np = of_get_child_by_name(iodev->dev->of_node, "clocks");
 	if (!clk_np) {
 		dev_err(&pdev->dev, "could not find clock sub-node\n");
 		return ERR_PTR(-EINVAL);