pinctrl: pinctrl-single: Fix error check condition

*map should be tested for NULL instead of map.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-single.c

@@ -800,7 +800,7 @@ static int pcs_dt_node_to_map(struct pinctrl_dev *pctldev,
 	pcs = pinctrl_dev_get_drvdata(pctldev);
 
 	*map = devm_kzalloc(pcs->dev, sizeof(**map), GFP_KERNEL);
-	if (!map)
+	if (!*map)
 		return -ENOMEM;
 
 	*num_maps = 0;