for_each_child_of_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put.
This was done using the Coccinelle semantic patch iterators/for_each_child.cocci Signed-off-by: Julia Lawall <[email protected]> --- drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 4 +++- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff -u -p a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -377,8 +377,10 @@ static bool mtk_drm_get_all_drm_priv(str if (all_drm_priv[cnt] && all_drm_priv[cnt]->mtk_drm_bound) cnt++; - if (cnt == MAX_CRTC) + if (cnt == MAX_CRTC) { + of_node_put(node); break; + } } if (drm_priv->data->mmsys_dev_num == cnt) { diff -u -p a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c @@ -436,8 +436,10 @@ 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;
