Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.3 070/203] media: mtk-mdp: fix reference count on old device tree | Date | Sun, 22 Sep 2019 14:41:36 -0400 |
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From: Matthias Brugger <matthias.bgg@gmail.com>
[ Upstream commit 864919ea0380e62adb2503b89825fe358acb8216 ]
of_get_next_child() increments the reference count of the returning device_node. Decrement it in the check if we are using the old or the new DTB.
Fixes: ba1f1f70c2c0 ("[media] media: mtk-mdp: Fix mdp device tree") Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Houlong Wei <houlong.wei@mediatek.com> [hverkuil-cisco@xs4all.nl: use node instead of parent as temp variable] Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c index fc9faec85edb6..5d44f2e92dd50 100644 --- a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c +++ b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c @@ -110,7 +110,9 @@ static int mtk_mdp_probe(struct platform_device *pdev) mutex_init(&mdp->vpulock); /* Old dts had the components as child nodes */ - if (of_get_next_child(dev->of_node, NULL)) { + node = of_get_next_child(dev->of_node, NULL); + if (node) { + of_node_put(node); parent = dev->of_node; dev_warn(dev, "device tree is out of date\n"); } else { -- 2.20.1
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