6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
commit 5beb6fba25db235b52eab34bde8112f07bb31d75 upstream.
Error paths that exit for_each_child_of_node() need to call
of_node_put() to decerement the child refcount and avoid memory leaks.
Add the missing of_node_put().
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 453c3364632a ("drm/mediatek: Add ovl_adaptor support for MT8195")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
Reviewed-by: CK Hu <ck.hu@xxxxxxxxxxxx>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240624-mtk_disp_ovl_adaptor_scoped-v1-2-9fa1e074d881@xxxxxxxxx/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
@@ -523,8 +523,10 @@ static int ovl_adaptor_comp_init(struct
}
comp_pdev = of_find_device_by_node(node);
- if (!comp_pdev)
+ if (!comp_pdev) {
+ of_node_put(node);
return -EPROBE_DEFER;
+ }
priv->ovl_adaptor_comp[id] = &comp_pdev->dev;
