From 2e64a174179a144742fa70f09803a012aceca476 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Wed, 9 May 2018 15:00:41 +0200 Subject: [PATCH] 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 Reviewed-by: Thierry Reding Acked-by: Thierry Reding Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20180509130042.9435-4-boris.brezillon@bootlin.com --- drivers/gpu/drm/drm_of.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 1f4a16772583..260612958cbe 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -239,6 +239,11 @@ int drm_of_find_panel_or_bridge(const struct device_node *np, if (!remote) return -ENODEV; + if (!of_device_is_available(remote)) { + of_node_put(remote); + return -ENODEV; + } + if (panel) { *panel = of_drm_find_panel(remote); if (!IS_ERR(*panel))