Re: [PATCH -next] pinctrl: ti-iodelay: Fix return value check in ti_iodelay_probe()

[Tony Lindgren <tony@atomide.com>]

* Wei Yongjun <weiyj.lk@gmail.com> [170117 06:42]:
> From: Wei Yongjun <weiyongjun1@huawei.com>
> 
> In case of error, the function pinctrl_register() returns
> NULL not ERR_PTR(). The IS_ERR() test in the return value
> check should be replaced with NULL test.
> 
> Fixes: 003910ebc83b ("pinctrl: Introduce TI IOdelay configuration driver")
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>

Acked-by: Tony Lindgren <tony@atomide.com>

> ---
>  drivers/pinctrl/ti/pinctrl-ti-iodelay.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
> index 3b86d3d..8899f5e 100644
> --- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
> +++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
> @@ -892,9 +892,9 @@ static int ti_iodelay_probe(struct platform_device *pdev)
>  	iod->desc.owner = THIS_MODULE;
>  
>  	iod->pctl = pinctrl_register(&iod->desc, dev, iod);
> -	if (!iod->pctl) {
> +	if (IS_ERR(iod->pctl)) {
>  		dev_err(dev, "Failed to register pinctrl\n");
> -		ret = -ENODEV;
> +		ret = PTR_ERR(iod->pctl);
>  		goto exit_out;
>  	}
>