Commit 2e64a174 authored May 09, 2018 by Boris Brezillon Committed by Thierry Reding Jul 10, 2018

drm/of: Make drm_of_find_panel_or_bridge() fail when the device is disabled



There's no point searching for a drm_bridge or drm_panel if the OF node
we're pointing has a status property that is not "okay" or "ok". Just
return -ENODEV in this case.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180509130042.9435-4-boris.brezillon@bootlin.com

parent c59eb3cf

drivers/gpu/drm/drm_of.c

+5 −0

Original line number	Original line	Diff line number	Diff line
	@@ -239,6 +239,11 @@ int drm_of_find_panel_or_bridge(const struct device_node *np,
	if (!remote)		if (!remote)
	return -ENODEV;		return -ENODEV;

			if (!of_device_is_available(remote)) {
			of_node_put(remote);
			return -ENODEV;
			}

	if (panel) {		if (panel) {
	*panel = of_drm_find_panel(remote);		*panel = of_drm_find_panel(remote);
	if (!IS_ERR(*panel))		if (!IS_ERR(*panel))