Merge branch 'spi/merge' of git://git.secretlab.ca/git/linux-2.6

[~andy/linux] / include / asm-generic / gpio.h

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index ff5c66080c8c947e64edd2c8db17436d98921ad7..fcdcb5d5c99539871c448411dbdb0fddd2be56b8 100644 (file)
--- 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;