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x86, debug: gpio_free might sleep

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According to the documentation gpio_free should only be called from task
context only.  To make this more explicit add a might sleep to all
implementations.

This patch changes the gpio_free implementations for the x86
architecture.

Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Uwe Kleine-König
2008-09-15 22:02:43 +02:00
committed by Ingo Molnar
parent 90f7d25c6b
commit fbdbf70993
1 changed files with 3 additions and 0 deletions
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3
include/asm-x86/mach-rdc321x/gpio.h
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@@ -1,6 +1,8 @@
#ifndef _RDC321X_GPIO_H #ifndef _RDC321X_GPIO_H
#define _RDC321X_GPIO_H #define _RDC321X_GPIO_H
#include <linux/kernel.h>
extern int rdc_gpio_get_value(unsigned gpio); extern int rdc_gpio_get_value(unsigned gpio);
extern void rdc_gpio_set_value(unsigned gpio, int value); extern void rdc_gpio_set_value(unsigned gpio, int value);
extern int rdc_gpio_direction_input(unsigned gpio); extern int rdc_gpio_direction_input(unsigned gpio);
@@ -18,6 +20,7 @@ static inline int gpio_request(unsigned gpio, const char *label)
static inline void gpio_free(unsigned gpio) static inline void gpio_free(unsigned gpio)
{ {
might_sleep();
rdc_gpio_free(gpio); rdc_gpio_free(gpio);
} }