pinctrl: simplify of_pinctrl_get()

This commit does not change the logic at all.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
index 0bbf7d7..fe04e74 100644
--- a/drivers/pinctrl/devicetree.c
+++ b/drivers/pinctrl/devicetree.c
@@ -97,13 +97,7 @@
 
 struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
 {
-	struct pinctrl_dev *pctldev;
-
-	pctldev = get_pinctrl_dev_from_of_node(np);
-	if (!pctldev)
-		return NULL;
-
-	return pctldev;
+	return get_pinctrl_dev_from_of_node(np);
 }
 
 static int dt_to_map_one_config(struct pinctrl *p, const char *statename,