[PATCH] drm/exynos: fix IS_ERR() vs NULL check in probe

[Inki Dae]

Hi Dan Carpenter.

Same patch[1] was posted so I will pick it up. 

[1] https://www.spinics.net/lists/arm-kernel/msg967488.html

Thanks,
Inki Dae

22. 4. 8. 19:21에 Dan Carpenter 이(가) 쓴 글:
> The of_drm_find_bridge() does not return error pointers, it returns
> NULL on error.
> 
> Fixes: dd8b6803bc49 ("exynos: drm: dsi: Attach in_bridge in MIC driver")
> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
> ---
> -EPROBE_DEFER is the correct return, right?
> 
>  drivers/gpu/drm/exynos/exynos_drm_mic.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_mic.c b/drivers/gpu/drm/exynos/exynos_drm_mic.c
> index 9e06f8e2a863..07e04ceb2476 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_mic.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c
> @@ -434,9 +434,9 @@ static int exynos_mic_probe(struct platform_device *pdev)
>  
>  	remote = of_graph_get_remote_node(dev->of_node, 1, 0);
>  	mic->next_bridge = of_drm_find_bridge(remote);
> -	if (IS_ERR(mic->next_bridge)) {
> +	if (!mic->next_bridge) {
>  		DRM_DEV_ERROR(dev, "mic: Failed to find next bridge\n");
> -		ret = PTR_ERR(mic->next_bridge);
> +		ret = -EPROBE_DEFER;
>  		goto err;
>  	}
>