[ARM] S3C24XX: GPIO: Fix error returns from gpio functions

Several GPIO functions have been returning -1 to indicate
an error instead of returning a proper error code. Change
to return -EINVAL for invalid argument(s).

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/arm/plat-s3c24xx/gpio.c b/arch/arm/plat-s3c24xx/gpio.c
index ae0b9d6f3fb8..95df059b5a1d 100644
--- a/arch/arm/plat-s3c24xx/gpio.c
+++ b/arch/arm/plat-s3c24xx/gpio.c
@@ -184,10 +184,10 @@ EXPORT_SYMBOL(s3c2410_modify_misccr);
 int s3c2410_gpio_getirq(unsigned int pin)
 {
         if (pin < S3C2410_GPF(0) || pin > S3C2410_GPG(15))
-                return -1;      /* not valid interrupts */
+                return -EINVAL; /* not valid interrupts */
 
         if (pin < S3C2410_GPG(0) && pin > S3C2410_GPF(7))
-                return -1;      /* not valid pin */
+                return -EINVAL; /* not valid pin */
 
         if (pin < S3C2410_GPF(4))
                 return (pin - S3C2410_GPF(0)) + IRQ_EINT0;