drm: of: drm_of_panel_bridge_remove(): fix device_node leak

drm_of_panel_bridge_remove() uses of_graph_get_remote_node() to get a
device_node but does not put the node reference.

Fixes: c70087e8f16f ("drm/drm_of: add drm_of_panel_bridge_remove function")
Cc: stable@vger.kernel.org # v4.15
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260109-drm-bridge-alloc-getput-drm_of_find_bridge-2-v2-1-8bad3ef90b9f@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h
index 7f0256dae3f13de1d4109e9265d66684ef2a08ee..f3e55ea2174c09ab15036ffaf1b71fa04cae2c71 100644 (file)
--- a/include/drm/drm_of.h
+++ b/include/drm/drm_of.h
@@ -5,6 +5,7 @@
 #include <linux/err.h>
 #include <linux/of_graph.h>
 #if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_DRM_PANEL_BRIDGE)
+#include <linux/of.h>
 #include <drm/drm_bridge.h>
 #endif
 
@@ -173,6 +174,8 @@ static inline int drm_of_panel_bridge_remove(const struct device_node *np,
        bridge = of_drm_find_bridge(remote);
        drm_panel_bridge_remove(bridge);
 
+       of_node_put(remote);
+
        return 0;
 #else
        return -EINVAL;