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path: root/drivers/gpio
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Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/mxc_gpio.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpio/mxc_gpio.c b/drivers/gpio/mxc_gpio.c
index 1037862..6efbb02 100644
--- a/drivers/gpio/mxc_gpio.c
+++ b/drivers/gpio/mxc_gpio.c
@@ -24,6 +24,7 @@
#include <asm/arch/imx-regs.h>
#include <asm/io.h>
#include <mxc_gpio.h>
+#include <errno.h>
/* GPIO port description */
static unsigned long gpio_ports[] = {
@@ -47,7 +48,7 @@ int mxc_gpio_direction(unsigned int gpio, enum mxc_gpio_direction direction)
u32 l;
if (port >= ARRAY_SIZE(gpio_ports))
- return 1;
+ return -EINVAL;
gpio &= 0x1f;
@@ -95,7 +96,7 @@ int mxc_gpio_get(unsigned int gpio)
u32 l;
if (port >= ARRAY_SIZE(gpio_ports))
- return -1;
+ return -EINVAL;
gpio &= 0x1f;