[PATCH 01/20] drm/fb-helper: Improve error reporting in setup

[Noralf Trønnes]

Den 08.09.2018 15.46, skrev Noralf Trønnes:
> Improve error reporting in drm_fb_helper_fbdev_setup() by printing the
> error code. This is useful for drivers that choose to not fall over just
> because fbdev doesen't work, but still wants clues to why it failed.
> This way they don't have to provide an error message themselves.
>
> Signed-off-by: Noralf Trønnes <noralf at tronnes.org>
> ---
>   drivers/gpu/drm/drm_fb_helper.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)

Applied to drm-misc-next with Sam's ack, thanks.

Noralf.

> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index 4b0dd20bccb8..2f865a046f6d 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -2842,7 +2842,7 @@ int drm_fb_helper_fbdev_setup(struct drm_device *dev,
>   	if (!max_conn_count)
>   		max_conn_count = dev->mode_config.num_connector;
>   	if (!max_conn_count) {
> -		DRM_DEV_ERROR(dev->dev, "No connectors\n");
> +		DRM_DEV_ERROR(dev->dev, "fbdev: No connectors\n");
>   		return -EINVAL;
>   	}
>   
> @@ -2850,13 +2850,13 @@ int drm_fb_helper_fbdev_setup(struct drm_device *dev,
>   
>   	ret = drm_fb_helper_init(dev, fb_helper, max_conn_count);
>   	if (ret < 0) {
> -		DRM_DEV_ERROR(dev->dev, "Failed to initialize fbdev helper\n");
> +		DRM_DEV_ERROR(dev->dev, "fbdev: Failed to initialize (ret=%d)\n", ret);
>   		return ret;
>   	}
>   
>   	ret = drm_fb_helper_single_add_all_connectors(fb_helper);
>   	if (ret < 0) {
> -		DRM_DEV_ERROR(dev->dev, "Failed to add connectors\n");
> +		DRM_DEV_ERROR(dev->dev, "fbdev: Failed to add connectors (ret=%d)\n", ret);
>   		goto err_drm_fb_helper_fini;
>   	}
>   
> @@ -2865,7 +2865,7 @@ int drm_fb_helper_fbdev_setup(struct drm_device *dev,
>   
>   	ret = drm_fb_helper_initial_config(fb_helper, preferred_bpp);
>   	if (ret < 0) {
> -		DRM_DEV_ERROR(dev->dev, "Failed to set fbdev configuration\n");
> +		DRM_DEV_ERROR(dev->dev, "fbdev: Failed to set configuration (ret=%d)\n", ret);
>   		goto err_drm_fb_helper_fini;
>   	}
>