commit 7c295975a85b049385dfe0d5ee0d4d543619fbdc
author Lars-Peter Clausen <lars@metafoo.de> Wed May 25 16:20:31 2011 -0700
committer Grant Likely <grant.likely@secretlab.ca> Fri May 27 17:56:45 2011 -0600
tree 447683c4ddaf6e4380ad8f5f5dd20d4576f7428e
parent 3474cb3cc0140f9cf6ca56983f8180b4b4c5c36a

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>

drivers/gpio/gpiolib.c

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 137a8ca..a971e3d 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1296,7 +1296,7 @@
  * @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 @@
  * @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);

include/asm-generic/gpio.h

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index a98b52c..fcdcb5d 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -193,8 +193,8 @@
 };
 
 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
 

include/linux/gpio.h

diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 0f8265f..32d47e7 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -41,7 +41,7 @@
 	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 @@
 	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();