[PATCH] drm: msm: fix error check return value of irq_of_parse_and_map()

[Dmitry Baryshkov]

On Fri, 22 Apr 2022 at 11:52, <cgel.zte at gmail.com> wrote:
>
> From: Lv Ruyi <lv.ruyi at zte.com.cn>
>
> The irq_of_parse_and_map() function returns 0 on failure, and does not
> return an negative value.
>
> Reported-by: Zeal Robot <zealci at zte.com.cn>
> Signed-off-by: Lv Ruyi <lv.ruyi at zte.com.cn>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>

> ---
>  drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> index 3b92372e7bdf..1fb1ed9e95d9 100644
> --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_kms.c
> @@ -570,7 +570,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
>         }
>
>         irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
> -       if (irq < 0) {
> +       if (!irq) {
>                 ret = irq;
>                 DRM_DEV_ERROR(&pdev->dev, "failed to get irq: %d\n", ret);
>                 goto fail;
> --
> 2.25.1
>


-- 
With best wishes
Dmitry