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gpio: constify the data parameter to gpiochip_find() 

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Grant Likely 2012-03-02 15:56:03 -07:00
parent b3950d50cf
commit 6e2cf65140
3 changed files with 6 additions and 5 deletions
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5
drivers/gpio/gpiolib.c
View File

@ -1152,8 +1152,9 @@ EXPORT_SYMBOL_GPL(gpiochip_remove);
* non-zero, this function will return to the caller and not iterate over any * non-zero, this function will return to the caller and not iterate over any
* more gpio_chips. * more gpio_chips.
*/ */
struct gpio_chip *gpiochip_find(void *data, struct gpio_chip *gpiochip_find(const void *data,
int (*match)(struct gpio_chip *chip, void *data)) int (*match)(struct gpio_chip *chip,
const void *data))
{ {
struct gpio_chip *chip = NULL; struct gpio_chip *chip = NULL;
unsigned long flags; unsigned long flags;

2
drivers/of/gpio.c
View File

@ -229,7 +229,7 @@ void of_gpiochip_remove(struct gpio_chip *chip)
} }
/* Private function for resolving node pointer to gpio_chip */ /* Private function for resolving node pointer to gpio_chip */
static int of_gpiochip_is_match(struct gpio_chip *chip, void *data) static int of_gpiochip_is_match(struct gpio_chip *chip, const void *data)
{ {
return chip->of_node == data; return chip->of_node == data;
} }

4
include/asm-generic/gpio.h
View File

@ -142,9 +142,9 @@ extern int __must_check gpiochip_reserve(int start, int ngpio);
/* add/remove chips */ /* add/remove chips */
extern int gpiochip_add(struct gpio_chip *chip); extern int gpiochip_add(struct gpio_chip *chip);
extern int __must_check gpiochip_remove(struct gpio_chip *chip); extern int __must_check gpiochip_remove(struct gpio_chip *chip);
extern struct gpio_chip *gpiochip_find(void *data, extern struct gpio_chip *gpiochip_find(const void *data,
int (*match)(struct gpio_chip *chip, int (*match)(struct gpio_chip *chip,
void *data)); const void *data));
/* Always use the library code for GPIO management calls, /* Always use the library code for GPIO management calls,