Re: [PATCH] pinctrl: at91: fix a couple NULL vs IS_ERR() checks

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On 22.05.2023 10:44, Dan Carpenter wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> The devm_kasprintf_strarray() function doesn't return NULL on error,
> it returns error pointers.  Update the checks accordingly.
> 
> Fixes: f494c1913cbb ("pinctrl: at91: use devm_kasprintf() to avoid potential leaks (part 2)")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Reviewed-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>


> ---
>  drivers/pinctrl/pinctrl-at91.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
> index 871209c24153..39956d821ad7 100644
> --- a/drivers/pinctrl/pinctrl-at91.c
> +++ b/drivers/pinctrl/pinctrl-at91.c
> @@ -1389,8 +1389,8 @@ static int at91_pinctrl_probe(struct platform_device *pdev)
>                 char **names;
> 
>                 names = devm_kasprintf_strarray(dev, "pio", MAX_NB_GPIO_PER_BANK);
> -               if (!names)
> -                       return -ENOMEM;
> +               if (IS_ERR(names))
> +                       return PTR_ERR(names);
> 
>                 for (j = 0; j < MAX_NB_GPIO_PER_BANK; j++, k++) {
>                         char *name = names[j];
> @@ -1870,8 +1870,8 @@ static int at91_gpio_probe(struct platform_device *pdev)
>         }
> 
>         names = devm_kasprintf_strarray(dev, "pio", chip->ngpio);
> -       if (!names)
> -               return -ENOMEM;
> +       if (IS_ERR(names))
> +               return PTR_ERR(names);
> 
>         for (i = 0; i < chip->ngpio; i++)
>                 strreplace(names[i], '-', alias_idx + 'A');
> --
> 2.39.2
> 





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