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authorJohan Hovold <johan+linaro@kernel.org>2024-02-17 16:02:23 +0100
committerNeil Armstrong <neil.armstrong@linaro.org>2024-02-23 11:59:37 +0100
commit9ee485bdda68d6d3f5728cbe3150eb9013d7d22b (patch)
tree4d53ab83554a3f1b8a68a699f4d1d7f9bf6bee47
parent1fa8d07ae1a5fa4e87de42c338e8fc27f46d8bb6 (diff)
drm/bridge: aux-hpd: fix OF node leaks
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.baryshkov@linaro.org> Cc: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20240217150228.5788-2-johan+linaro@kernel.org Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240217150228.5788-2-johan+linaro@kernel.org
-rw-r--r--drivers/gpu/drm/bridge/aux-hpd-bridge.c3
1 files changed, 3 insertions, 0 deletions
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);