[PATCH RESEND] net: ethernet: ti: cpts: drop the refclk mux node reference

[Wentao Liang <vulab@iscas.ac.cn>]

cpts_of_mux_clk_setup() obtains refclk_np with of_get_child_by_name()
and only drops that reference on the error path.  of_clk_add_hw_provider()
takes its own reference through of_node_get(), which
of_clk_del_provider() releases later, so the reference taken by
of_get_child_by_name() is leaked when the mux clock is registered
successfully.

Drop the caller's reference once the provider has been registered and
its devm cleanup action is in place.

Fixes: a3047a81ba13 ("net: ethernet: ti: cpts: add support for ext rftclk selection")
Cc: stable@vger.kernel.org
Assisted-by: DeepSeek-V4.1-Flash and OpenAI Codex
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
---
 drivers/net/ethernet/ti/cpts.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c
index 2ba4c8795d60..372cef13d81e 100644
--- a/drivers/net/ethernet/ti/cpts.c
+++ b/drivers/net/ethernet/ti/cpts.c
@@ -714,6 +714,8 @@ static int cpts_of_mux_clk_setup(struct cpts *cpts, struct device_node *node)
 		goto mux_fail;
 	}
 
+	of_node_put(refclk_np);
+
 	return ret;
 
 mux_fail:
-- 
2.34.1