4.20-stable review patch. If anyone has any objections, please let me know. ------------------ From: Julia Lawall <Julia.Lawall@xxxxxxx> commit 28b170e88bc0c7509e6724717c15cb4b5686026e upstream. Add an of_node_put when the result of of_graph_get_remote_port_parent is not available. The semantic match that finds this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @r exists@ local idexpression e; expression x; @@ e = of_graph_get_remote_port_parent(...); ... when != x = e when != true e == NULL when != of_node_put(e) when != of_fwnode_handle(e) ( return e; | *return ...; ) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/of/property.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -806,6 +806,7 @@ struct device_node *of_graph_get_remote_ if (!of_device_is_available(remote)) { pr_debug("not available for remote node\n"); + of_node_put(remote); return NULL; }
