diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2011-05-25 16:20:31 -0700 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-05-27 17:56:45 -0600 |
| commit | 7c295975a85b049385dfe0d5ee0d4d543619fbdc (patch) | |
| tree | 447683c4ddaf6e4380ad8f5f5dd20d4576f7428e | |
| parent | 3474cb3cc0140f9cf6ca56983f8180b4b4c5c36a (diff) | |
| download | linux-7c295975a85b049385dfe0d5ee0d4d543619fbdc.tar.bz2 | |
gpio: make gpio_{request,free}_array gpio array parameter const
gpio_{request,free}_array should not (and do not) modify the passed gpio
array, so make the parameter const.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| -rw-r--r-- | drivers/gpio/gpiolib.c | 4 | ||||
| -rw-r--r-- | include/asm-generic/gpio.h | 4 | ||||
| -rw-r--r-- | include/linux/gpio.h | 4 |
3 files changed, 6 insertions, 6 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 137a8ca67822..a971e3d043ba 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1296,7 +1296,7 @@ EXPORT_SYMBOL_GPL(gpio_request_one); * @array: array of the 'struct gpio' * @num: how many GPIOs in the array */ -int gpio_request_array(struct gpio *array, size_t num) +int gpio_request_array(const struct gpio *array, size_t num) { int i, err; @@ -1319,7 +1319,7 @@ EXPORT_SYMBOL_GPL(gpio_request_array); * @array: array of the 'struct gpio' * @num: how many GPIOs in the array */ -void gpio_free_array(struct gpio *array, size_t num) +void gpio_free_array(const struct gpio *array, size_t num) { while (num--) gpio_free((array++)->gpio); diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index a98b52cb970b..fcdcb5d5c995 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -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 diff --git a/include/linux/gpio.h b/include/linux/gpio.h index 0f8265f8e8c3..32d47e710661 100644 --- a/include/linux/gpio.h +++ b/include/linux/gpio.h @@ -41,7 +41,7 @@ static inline int gpio_request_one(unsigned gpio, return -ENOSYS; } -static inline int gpio_request_array(struct gpio *array, size_t num) +static inline int gpio_request_array(const struct gpio *array, size_t num) { return -ENOSYS; } @@ -54,7 +54,7 @@ static inline void gpio_free(unsigned gpio) WARN_ON(1); } -static inline void gpio_free_array(struct gpio *array, size_t num) +static inline void gpio_free_array(const struct gpio *array, size_t num) { might_sleep(); |