Re: [patch] mfd: off by one issue

From: Samuel Ortiz
Date: Fri Apr 02 2010 - 05:54:49 EST


Hi Dan,

On Sun, Mar 28, 2010 at 02:28:08PM +0300, Dan Carpenter wrote:
> "pcf->irq_handler" has PCF50633_NUM_IRQ elements.
>
> Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
Patch applied, many thanks.

Cheers,
Samuel.


> diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
> index 03dcc92..4f13608 100644
> --- a/drivers/mfd/pcf50633-core.c
> +++ b/drivers/mfd/pcf50633-core.c
> @@ -217,7 +217,7 @@ static struct attribute_group pcf_attr_group = {
> int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
> void (*handler) (int, void *), void *data)
> {
> - if (irq < 0 || irq > PCF50633_NUM_IRQ || !handler)
> + if (irq < 0 || irq >= PCF50633_NUM_IRQ || !handler)
> return -EINVAL;
>
> if (WARN_ON(pcf->irq_handler[irq].handler))
> @@ -234,7 +234,7 @@ EXPORT_SYMBOL_GPL(pcf50633_register_irq);
>
> int pcf50633_free_irq(struct pcf50633 *pcf, int irq)
> {
> - if (irq < 0 || irq > PCF50633_NUM_IRQ)
> + if (irq < 0 || irq >= PCF50633_NUM_IRQ)
> return -EINVAL;
>
> mutex_lock(&pcf->lock);

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