Re: [patch] extcon: use correct size

From: walter harms
Date: Thu Feb 04 2016 - 07:54:03 EST




Am 04.02.2016 12:36, schrieb Dan Carpenter:
> The info->status[] array has 3 elements. We are using size
> MAX77843_MUIC_IRQ_NUM (16) instead of MAX77843_MUIC_STATUS_NUM (3) as
> intended.
>
> Fixes: 135d9f7d135a ('extcon: max77843: Clear IRQ bits state before request IRQ')
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
> This is from static analysis and *NOT TESTED*. Please review carefully.
>
> diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
> index 7bbc300..b188bd6 100644
> --- a/drivers/extcon/extcon-max77843.c
> +++ b/drivers/extcon/extcon-max77843.c
> @@ -806,7 +806,7 @@ static int max77843_muic_probe(struct platform_device *pdev)
> /* Clear IRQ bits before request IRQs */
> ret = regmap_bulk_read(max77843->regmap_muic,
> MAX77843_MUIC_REG_INT1, info->status,
> - MAX77843_MUIC_IRQ_NUM);
> + MAX77843_MUIC_STATUS_NUM);
> if (ret) {
> dev_err(&pdev->dev, "Failed to Clear IRQ bits\n");
> goto err_muic_irq;
> --


just for my curiosity: what is wrong with ARRAY_SIZE() ?
So far i understand is the functions intention to fill the array
completely.

re,
wh