media: mdp3: Fix resource leaks in of_find_device_by_node

Use put_device to release the object get through of_find_device_by_node,
avoiding resource leaks.

Signed-off-by: Lu Hongfei <luhongfei@vivo.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
index 7b81041..667933e 100644 (file)
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
@@ -892,11 +892,13 @@ static int mdp_get_subsys_id(struct mdp_dev *mdp, struct device *dev,
        ret = cmdq_dev_get_client_reg(&comp_pdev->dev, &cmdq_reg, index);
        if (ret != 0) {
                dev_err(&comp_pdev->dev, "cmdq_dev_get_subsys fail!\n");
+               put_device(&comp_pdev->dev);
                return -EINVAL;
        }
 
        comp->subsys_id = cmdq_reg.subsys;
        dev_dbg(&comp_pdev->dev, "subsys id=%d\n", cmdq_reg.subsys);
+       put_device(&comp_pdev->dev);
 
        return 0;
 }