[PATCH] pinctrl: core: Add missing #ifdef CONFIG_GPIOLIB

[He Zhe <zhe.he@xxxxxxxxxxxxx>]

To fix the following build warnings when CONFIG_GPIOLIB=n.

drivers/pinctrl/core.c:1607:20: warning: unused variable 'chip' [-Wunused-variable]
 1608 |  struct gpio_chip *chip;
      |                    ^~~~
drivers/pinctrl/core.c:1606:15: warning: unused variable 'gpio_num' [-Wunused-variable]
 1607 |  unsigned int gpio_num;
      |               ^~~~~~~~
drivers/pinctrl/core.c:1605:29: warning: unused variable 'range' [-Wunused-variable]
 1606 |  struct pinctrl_gpio_range *range;
      |                             ^~~~~

Fixes: f1b206cf7c57 ("pinctrl: core: print gpio in pins debugfs file")
Signed-off-by: He Zhe <zhe.he@xxxxxxxxxxxxx>
---
 drivers/pinctrl/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 3663d87f51a0..9fc4433fece4 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -1602,9 +1602,11 @@ static int pinctrl_pins_show(struct seq_file *s, void *what)
 	struct pinctrl_dev *pctldev = s->private;
 	const struct pinctrl_ops *ops = pctldev->desc->pctlops;
 	unsigned i, pin;
+#ifdef CONFIG_GPIOLIB
 	struct pinctrl_gpio_range *range;
 	unsigned int gpio_num;
 	struct gpio_chip *chip;
+#endif
 
 	seq_printf(s, "registered pins: %d\n", pctldev->desc->npins);
 
-- 
2.17.1