[PATCH v2] phy: ti: j721e-wiz: Fix device node reference leak in wiz_get_lane_phy_types()

[Felix Gu]

The serdes device_node is obtained using of_get_child_by_name(),
which increments the reference count. However, it is never put,
leading to a reference leak.

Add the missing of_node_put() calls to ensure the reference count is
properly balanced.

Fixes: 7ae14cf581f2 ("phy: ti: j721e-wiz: Implement DisplayPort mode to the wiz driver")
Suggested-by: Vladimir Oltean <olteanv@xxxxxxxxx>
Signed-off-by: Felix Gu <ustc.gu@xxxxxxxxx>
---
Changes in v2:
- Use of_node_put() suggested by Vladimir Oltean.
- Link to v1: https://lore.kernel.org/r/20260211-wiz-v1-1-fdd018d02f33@xxxxxxxxx
---
 drivers/phy/ti/phy-j721e-wiz.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c
index 12a19bf2875c..10110cc2115b 100644
--- a/drivers/phy/ti/phy-j721e-wiz.c
+++ b/drivers/phy/ti/phy-j721e-wiz.c
@@ -1428,6 +1428,7 @@ static int wiz_get_lane_phy_types(struct device *dev, struct wiz *wiz)
 			dev_err(dev,
 				"%s: Reading \"reg\" from \"%s\" failed: %d\n",
 				__func__, subnode->name, ret);
+			of_node_put(serdes);
 			return ret;
 		}
 		of_property_read_u32(subnode, "cdns,num-lanes", &num_lanes);
@@ -1442,6 +1443,7 @@ static int wiz_get_lane_phy_types(struct device *dev, struct wiz *wiz)
 		}
 	}
 
+	of_node_put(serdes);
 	return 0;
 }
 

---
base-commit: 193579fe01389bc21aff0051d13f24e8ea95b47d
change-id: 20260204-wiz-9a67604a034f

Best regards,
-- 
Felix Gu <ustc.gu@xxxxxxxxx>