[PATCH] leds: mt6323: Fix an off by one bug in probe

Pavel Machek pavel at ucw.cz
Thu Mar 23 04:16:55 PDT 2017


On Thu 2017-03-23 13:40:49, Dan Carpenter wrote:
> It should be ">= MT6323_MAX_LEDS" instead of ">".  Also "reg" is a u32
> so it can't be negative and we can remove the test for negative values.
> 
> Fixes: 216ec6cc4c19 ("leds: Add LED support for MT6323 PMIC")
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

Acked-by: Pavel Machek <pavel at ucw.cz>


> diff --git a/drivers/leds/leds-mt6323.c b/drivers/leds/leds-mt6323.c
> index 48081bccbea5..8893c74e9a1f 100644
> --- a/drivers/leds/leds-mt6323.c
> +++ b/drivers/leds/leds-mt6323.c
> @@ -417,7 +417,7 @@ static int mt6323_led_probe(struct platform_device *pdev)
>  			goto put_child_node;
>  		}
>  
> -		if (reg < 0 || reg > MT6323_MAX_LEDS || leds->led[reg]) {
> +		if (reg >= MT6323_MAX_LEDS || leds->led[reg]) {
>  			dev_err(dev, "Invalid led reg %u\n", reg);
>  			ret = -EINVAL;
>  			goto put_child_node;

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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