Fix a device node reference leak where the remote endpoint node obtained
by of_graph_get_remote_endpoint() was not being properly released.

Add of_node_put() calls after of_property_read_u32() to fix this.

Fixes: e8d5bbf7f4c4 ("drm/sun4i: tcon: get TCON ID and matching engine with remote endpoint ID")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/gpu/drm/sun4i/sun4i_tcon.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 960e83c8291d..9214769a2857 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -970,6 +970,7 @@ static int sun4i_tcon_of_get_id_from_port(struct device_node *port)
 			continue;
 
 		ret = of_property_read_u32(remote, "reg", &reg);
+		of_node_put(remote);
 		if (ret)
 			continue;
 
-- 
2.39.5 (Apple Git-154)

Dne sreda, 29. oktober 2025 ob 08:49:10 Srednjeevropski standardni čas je Miaoqian Lin napisal(a):
> Fix a device node reference leak where the remote endpoint node obtained
> by of_graph_get_remote_endpoint() was not being properly released.
> 
> Add of_node_put() calls after of_property_read_u32() to fix this.
> 
> Fixes: e8d5bbf7f4c4 ("drm/sun4i: tcon: get TCON ID and matching engine with remote endpoint ID")
> Cc: stable@vger.kernel.org
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej