From: Jernej Skrabec <jernej.skrabec@siol.net>
Date: Tue, 10 Jul 2018 22:34:58 +0200
Subject: drm/sun4i: tcon: Release node when traversing of graph
Git-commit: da82107ecf328d4914d316872866ceeb683c01eb
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Function sun4i_tcon_find_engine_traverse() doesn't release node if it
needs to traverse of graph deeper than 1 level.
Fix this by calling of_node_put().
Fixes: 49836b11fe71 ("drm/sun4i: tcon: Generalize engine search algorithm")
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180710203511.18454-6-jernej.skrabec@siol.net
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/sun4i/sun4i_tcon.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -811,6 +811,7 @@ sun4i_tcon_find_engine_traverse(struct s
* remote output id. If this for some reason can't be done, 0
* is used as input port id.
*/
+ of_node_put(port);
port = of_graph_get_remote_port(ep);
if (!of_property_read_u32(port, "reg", ®) && reg > 0)
reg -= 1;