gpio: it87: balance superio enter/exit calls in error path

We always call superio_enter() in it87_gpio_direction_out() but only
call superio_exit() if the call to it87_gpio_set() succeeds. Move the
label to balance the calls in error path as well.

Fixes: ef877a159072 ("gpio: it87: use new line value setter callbacks")
Reported-by: Daniel Gibson <daniel@gibson.sh>
Closes: https://lore.kernel.org/all/bd0a00e3-9b8c-43e8-8772-e67b91f4c71e@gibson.sh/
Link: https://lore.kernel.org/r/20251210055026.23146-1-bartosz.golaszewski@oss.qualcomm.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>

diff --git a/drivers/gpio/gpio-it87.c b/drivers/gpio/gpio-it87.c
index 5d677bcfccf26f98e4e2cbcab9e84f847932ab4f..2ad3c239367bccf5c0c85bce38d116a6b171e228 100644 (file)
--- a/drivers/gpio/gpio-it87.c
+++ b/drivers/gpio/gpio-it87.c
@@ -12,6 +12,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/cleanup.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -241,23 +242,17 @@ static int it87_gpio_direction_out(struct gpio_chip *chip,
        mask = 1 << (gpio_num % 8);
        group = (gpio_num / 8);
 
-       spin_lock(&it87_gpio->lock);
+       guard(spinlock)(&it87_gpio->lock);
 
        rc = superio_enter();
        if (rc)
-               goto exit;
+               return rc;
 
        /* set the output enable bit */
        superio_set_mask(mask, group + it87_gpio->output_base);
 
        rc = it87_gpio_set(chip, gpio_num, val);
-       if (rc)
-               goto exit;
-
        superio_exit();
-
-exit:
-       spin_unlock(&it87_gpio->lock);
        return rc;
 }