[PATCH 1/2] drm/bridge: fix OF node leak

Johan Hovold johan at kernel.org
Tue Jul 8 08:51:23 UTC 2025


Make sure to drop the OF node reference taken when creating the aux
bridge device when the device is later released.

Fixes: 6914968a0b52 ("drm/bridge: properly refcount DT nodes in aux bridge drivers")
Cc: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
Signed-off-by: Johan Hovold <johan at kernel.org>
---
 drivers/gpu/drm/bridge/aux-bridge.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/bridge/aux-bridge.c b/drivers/gpu/drm/bridge/aux-bridge.c
index c179b86d208f..6642ac6819a0 100644
--- a/drivers/gpu/drm/bridge/aux-bridge.c
+++ b/drivers/gpu/drm/bridge/aux-bridge.c
@@ -17,6 +17,7 @@ static void drm_aux_bridge_release(struct device *dev)
 {
 	struct auxiliary_device *adev = to_auxiliary_dev(dev);
 
+	of_node_put(dev->of_node);
 	ida_free(&drm_aux_bridge_ida, adev->id);
 
 	kfree(adev);
@@ -64,6 +65,7 @@ int drm_aux_bridge_register(struct device *parent)
 
 	ret = auxiliary_device_init(adev);
 	if (ret) {
+		of_node_put(adev->dev.of_node);
 		ida_free(&drm_aux_bridge_ida, adev->id);
 		kfree(adev);
 		return ret;
-- 
2.49.0



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