diff options
Diffstat (limited to 'include/asm-generic/gpio.h')
| -rw-r--r-- | include/asm-generic/gpio.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index ff5c66080c8..fcdcb5d5c99 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -35,9 +35,9 @@ * platform data and other tables. */ -static inline int gpio_is_valid(int number) +static inline bool gpio_is_valid(int number) { - return ((unsigned)number) < ARCH_NR_GPIOS; + return number >= 0 && number < ARCH_NR_GPIOS; } struct device; @@ -193,8 +193,8 @@ struct gpio { }; extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *label); -extern int gpio_request_array(struct gpio *array, size_t num); -extern void gpio_free_array(struct gpio *array, size_t num); +extern int gpio_request_array(const struct gpio *array, size_t num); +extern void gpio_free_array(const struct gpio *array, size_t num); #ifdef CONFIG_GPIO_SYSFS @@ -212,7 +212,7 @@ extern void gpio_unexport(unsigned gpio); #else /* !CONFIG_GPIOLIB */ -static inline int gpio_is_valid(int number) +static inline bool gpio_is_valid(int number) { /* only non-negative numbers are valid */ return number >= 0; |