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phy: ti: j721e-wiz: Fix device node reference leak in wiz_get_lane_phy_types()

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[ Upstream commit 584b457f41 ]

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: 7ae14cf581 ("phy: ti: j721e-wiz: Implement DisplayPort mode to the wiz driver")
Suggested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://patch.msgid.link/20260212-wiz-v2-1-6e8bd4cc7a4a@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Gu
2026-04-02 13:07:31 +02:00
committed by Greg Kroah-Hartman
parent 54d77cc0c4
commit 5893ae3b45
1 changed files with 2 additions and 0 deletions
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drivers/phy/ti/phy-j721e-wiz.c
+2
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@@ -1424,6 +1424,7 @@ 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);
@@ -1438,6 +1439,7 @@ static int wiz_get_lane_phy_types(struct device *dev, struct wiz *wiz)
}
}
of_node_put(serdes);
return 0;
}