From: Nishka Dasgupta nishkadg.linux@gmail.com
commit 165d42c012be69900f0e2f8545626cb9e7d4a832 upstream.
Each iteration of for_each_child_of_node puts the previous node, but in the case of a goto from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the goto in two places. Issue found with Coccinelle.
Fixes: 119f5173628a (drm/mediatek: Add DRM Driver for Mediatek SoC MT8173)
Signed-off-by: Nishka Dasgupta nishkadg.linux@gmail.com Signed-off-by: CK Hu ck.hu@mediatek.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c @@ -566,12 +566,15 @@ static int mtk_drm_probe(struct platform comp = devm_kzalloc(dev, sizeof(*comp), GFP_KERNEL); if (!comp) { ret = -ENOMEM; + of_node_put(node); goto err_node; }
ret = mtk_ddp_comp_init(dev, node, comp, comp_id, NULL); - if (ret) + if (ret) { + of_node_put(node); goto err_node; + }
private->ddp_comp[comp_id] = comp; }