From: Nishka Dasgupta <nishkadg.linux@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: CK Hu <ck.hu@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -504,12 +504,15 @@ 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;
}
