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[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>
hifive-unleashed-5.1
Ben Dooks 2009-05-18 19:40:18 +01:00
parent 070276d5d0
commit 373e9644c5
3 changed files with 5 additions and 5 deletions
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4
arch/arm/mach-s3c2400/gpio.c
View File

@ -33,8 +33,8 @@
int s3c2400_gpio_getirq(unsigned int pin)
{
if (pin < S3C2410_GPE(0) || pin > S3C2400_GPE7_EINT7)
return -1; /* not valid interrupts */
if (pin < S3C2410_GPE(0) || pin > S3C2400_GPE(7))
return -EINVAL; /* not valid interrupts */
return (pin - S3C2410_GPE(0)) + IRQ_EINT0;
}

2
arch/arm/mach-s3c2410/gpio.c
View File

@ -40,7 +40,7 @@ int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
unsigned long val;
if (pin < S3C2410_GPG(8) || pin > S3C2410_GPG(15))
return -1;
return -EINVAL;
config &= 0xff;

4
arch/arm/plat-s3c24xx/gpio.c
View File

@ -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;