On 17/02/2024 16:02, Johan Hovold wrote:
The two device node references taken during allocation need to be
dropped when the auxiliary device is freed.

Fixes: 6914968a0b52 ("drm/bridge: properly refcount DT nodes in aux bridge 
drivers")
Cc: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Cc: Neil Armstrong <neil.armstr...@linaro.org>
Signed-off-by: Johan Hovold <johan+lin...@kernel.org>
---
  drivers/gpu/drm/bridge/aux-hpd-bridge.c | 3 +++
  1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/bridge/aux-hpd-bridge.c 
b/drivers/gpu/drm/bridge/aux-hpd-bridge.c
index bb55f697a181..9e71daf95bde 100644
--- a/drivers/gpu/drm/bridge/aux-hpd-bridge.c
+++ b/drivers/gpu/drm/bridge/aux-hpd-bridge.c
@@ -25,6 +25,7 @@ static void drm_aux_hpd_bridge_release(struct device *dev)
        ida_free(&drm_aux_hpd_bridge_ida, adev->id);
of_node_put(adev->dev.platform_data);
+       of_node_put(adev->dev.of_node);
kfree(adev);
  }
@@ -74,6 +75,8 @@ struct device *drm_dp_hpd_bridge_register(struct device 
*parent,
ret = auxiliary_device_init(adev);
        if (ret) {
+               of_node_put(adev->dev.platform_data);
+               of_node_put(adev->dev.of_node);
                ida_free(&drm_aux_hpd_bridge_ida, adev->id);
                kfree(adev);
                return ERR_PTR(ret);

Reviewed-by: Neil Armstrong <neil.armstr...@linaro.org>

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