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-rw-r--r--drivers/gpio/gpiolib.c2
-rw-r--r--include/linux/gpio.h3
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 8d2940517c99..317004fd94fb 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -792,6 +792,8 @@ void gpio_free(unsigned gpio)
unsigned long flags;
struct gpio_desc *desc;
+ might_sleep();
+
if (!gpio_is_valid(gpio)) {
WARN_ON(extra_checks);
return;
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 730a20b83576..e10c49a5b96e 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -8,6 +8,7 @@
#else
+#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>
@@ -32,6 +33,8 @@ static inline int gpio_request(unsigned gpio, const char *label)
static inline void gpio_free(unsigned gpio)
{
+ might_sleep();
+
/* GPIO can never have been requested */
WARN_ON(1);
}