pinctrl: remove unneeded initializer for list_for_each_entry() iterator

The iterator is initialized in list_for_each_entry().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/core.c

@@ -99,7 +99,7 @@ EXPORT_SYMBOL_GPL(pinctrl_dev_get_drvdata);
  */
 struct pinctrl_dev *get_pinctrl_dev_from_devname(const char *devname)
 {
-	struct pinctrl_dev *pctldev = NULL;
+	struct pinctrl_dev *pctldev;
 
 	if (!devname)
 		return NULL;
@@ -312,7 +312,7 @@ static inline int gpio_to_pin(struct pinctrl_gpio_range *range,
 static struct pinctrl_gpio_range *
 pinctrl_match_gpio_range(struct pinctrl_dev *pctldev, unsigned gpio)
 {
-	struct pinctrl_gpio_range *range = NULL;
+	struct pinctrl_gpio_range *range;
 
 	mutex_lock(&pctldev->mutex);
 	/* Loop over the ranges */
@@ -392,7 +392,7 @@ static int pinctrl_get_device_gpio_range(unsigned gpio,
 					 struct pinctrl_dev **outdev,
 					 struct pinctrl_gpio_range **outrange)
 {
-	struct pinctrl_dev *pctldev = NULL;
+	struct pinctrl_dev *pctldev;
 
 	mutex_lock(&pinctrldev_list_mutex);
 
@@ -1679,7 +1679,7 @@ DEFINE_SHOW_ATTRIBUTE(pinctrl_groups);
 static int pinctrl_gpioranges_show(struct seq_file *s, void *what)
 {
 	struct pinctrl_dev *pctldev = s->private;
-	struct pinctrl_gpio_range *range = NULL;
+	struct pinctrl_gpio_range *range;
 
 	seq_puts(s, "GPIO ranges handled:\n");