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drm/sun4i: tcon: Release node when traversing of graph

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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
This commit is contained in:
Jernej Skrabec 2018-07-10 22:34:58 +02:00 committed by Maxime Ripard
parent af11942ee4
commit da82107ecf
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drivers/gpu/drm/sun4i/sun4i_tcon.c
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@ -811,6 +811,7 @@ sun4i_tcon_find_engine_traverse(struct sun4i_drv *drv,
* 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) && reg > 0)
reg -= 1;