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drm/mediatek: mtk_drm_drv.c: Add of_node_put() before goto

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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>
This commit is contained in:
Nishka Dasgupta 2019-07-06 19:00:21 +05:30 committed by Greg Kroah-Hartman
parent 08d9995712
commit 9251e586a1
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/mediatek/mtk_drm_drv.c
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@ -504,12 +504,15 @@ static int mtk_drm_probe(struct platform_device *pdev)
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;
}