提交 e7db38a2 编写于 作者: L Linus Torvalds

Merge tag 'gpio-v4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Here are two GPIO fixes targeted for stable:

   - a leak in gpiochip_add path destined for stable

   - a kempld driver bug destined for stable"

* tag 'gpio-v4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: gpio-kempld: Fix get_direction return value
  gpio: fix gpio leak in gpiochip_add error path
...@@ -117,7 +117,7 @@ static int kempld_gpio_get_direction(struct gpio_chip *chip, unsigned offset) ...@@ -117,7 +117,7 @@ static int kempld_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
= container_of(chip, struct kempld_gpio_data, chip); = container_of(chip, struct kempld_gpio_data, chip);
struct kempld_device_data *pld = gpio->pld; struct kempld_device_data *pld = gpio->pld;
return kempld_gpio_get_bit(pld, KEMPLD_GPIO_DIR_NUM(offset), offset); return !kempld_gpio_get_bit(pld, KEMPLD_GPIO_DIR_NUM(offset), offset);
} }
static int kempld_gpio_pincount(struct kempld_device_data *pld) static int kempld_gpio_pincount(struct kempld_device_data *pld)
......
...@@ -53,6 +53,11 @@ static DEFINE_MUTEX(gpio_lookup_lock); ...@@ -53,6 +53,11 @@ static DEFINE_MUTEX(gpio_lookup_lock);
static LIST_HEAD(gpio_lookup_list); static LIST_HEAD(gpio_lookup_list);
LIST_HEAD(gpio_chips); LIST_HEAD(gpio_chips);
static void gpiochip_free_hogs(struct gpio_chip *chip);
static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip);
static inline void desc_set_label(struct gpio_desc *d, const char *label) static inline void desc_set_label(struct gpio_desc *d, const char *label)
{ {
d->label = label; d->label = label;
...@@ -297,6 +302,7 @@ int gpiochip_add(struct gpio_chip *chip) ...@@ -297,6 +302,7 @@ int gpiochip_add(struct gpio_chip *chip)
err_remove_chip: err_remove_chip:
acpi_gpiochip_remove(chip); acpi_gpiochip_remove(chip);
gpiochip_free_hogs(chip);
of_gpiochip_remove(chip); of_gpiochip_remove(chip);
spin_lock_irqsave(&gpio_lock, flags); spin_lock_irqsave(&gpio_lock, flags);
list_del(&chip->list); list_del(&chip->list);
...@@ -313,10 +319,6 @@ int gpiochip_add(struct gpio_chip *chip) ...@@ -313,10 +319,6 @@ int gpiochip_add(struct gpio_chip *chip)
} }
EXPORT_SYMBOL_GPL(gpiochip_add); EXPORT_SYMBOL_GPL(gpiochip_add);
/* Forward-declaration */
static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip);
static void gpiochip_free_hogs(struct gpio_chip *chip);
/** /**
* gpiochip_remove() - unregister a gpio_chip * gpiochip_remove() - unregister a gpio_chip
* @chip: the chip to unregister * @chip: the chip to unregister
......
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