Hello Doug,
On 2/5/22 01:13, Douglas Anderson wrote:
[snip]
> +static void panel_bridge_debugfs_init(struct drm_bridge *bridge,
> + struct dentry *root)
> +{
> + struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
> + struct drm_panel *panel = panel_bridge->panel;
> +
> + root = debugfs_create_dir("panel", root);
This could return a ERR_PTR(-errno) if the function doesn't succeed.
I noticed that most kernel code doesn't check the return value though...
> + if (panel->funcs->debugfs_init)
Probably if (!(IS_ERR(root) && panel->funcs->debugfs_init) ?
> + panel->funcs->debugfs_init(panel, root);
> +}
[snip]
> @@ -436,6 +436,9 @@ void drm_debugfs_connector_add(struct drm_connector *connector)
> /* vrr range */
> debugfs_create_file("vrr_range", S_IRUGO, root, connector,
> &vrr_range_fops);
Same here, wonder if the return value should be checked.
I leave it to you to decide, but regardless of that the patch looks good to me.
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Best regards,
--
Javier Martinez Canillas
Linux Engineering
Red Hat
