Commit 9eb74335 authored by Alexey Khoroshilov's avatar Alexey Khoroshilov Committed by Greg Kroah-Hartman

media: mtk-vcodec: Release device nodes in mtk_vcodec_init_enc_pm()

[ Upstream commit 8ea0f2ba ]

of_parse_phandle() returns the device node with refcount incremented.
There are two nodes that are used temporary in mtk_vcodec_init_enc_pm(),
but their refcounts are not decremented.

The patch adds one of_node_put() and fixes returning error codes.

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: default avatarAlexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 580d8b2f
......@@ -41,25 +41,27 @@ int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev)
node = of_parse_phandle(dev->of_node, "mediatek,larb", 0);
if (!node) {
mtk_v4l2_err("no mediatek,larb found");
return -1;
return -ENODEV;
}
pdev = of_find_device_by_node(node);
of_node_put(node);
if (!pdev) {
mtk_v4l2_err("no mediatek,larb device found");
return -1;
return -ENODEV;
}
pm->larbvenc = &pdev->dev;
node = of_parse_phandle(dev->of_node, "mediatek,larb", 1);
if (!node) {
mtk_v4l2_err("no mediatek,larb found");
return -1;
return -ENODEV;
}
pdev = of_find_device_by_node(node);
of_node_put(node);
if (!pdev) {
mtk_v4l2_err("no mediatek,larb device found");
return -1;
return -ENODEV;
}
pm->larbvenclt = &pdev->dev;
......
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