X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=include%2Fasm-generic%2Fgpio.h;h=fcdcb5d5c99539871c448411dbdb0fddd2be56b8;hb=562d1ffed2082fc59fb72173b856822ffe781559;hp=ff5c66080c8c947e64edd2c8db17436d98921ad7;hpb=0a9d59a2461477bd9ed143c01af9df3f8f00fa81;p=~andy%2Flinux

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;