From: Fabio Estevam <festevam@gmail.com>
Date: Sat, 9 Apr 2011 10:43:24 +0000 (+0000)
Subject: gpio: imx: Fix return value on error
X-Git-Tag: v2011.06-rc1~66^2~8
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e53bcd947daaf6d6c05c545ddb734cb89fc40772;p=kernel%2Fu-boot.git

gpio: imx: Fix return value on error

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---

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;