From 4c6d8fc20b09f9684743afd72e4dbc3f15524479 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 14 Jan 2019 17:44:56 +0100 Subject: drm: rcar-du: add missing of_node_put Add an of_node_put when the result of of_graph_get_remote_port_parent is not available. Add a second of_node_put if no encoder is selected (encoder remains NULL). The semantic match that finds the first problem is as follows (http://coccinelle.lip6.fr): // @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 ...; ) // Signed-off-by: Julia Lawall Reviewed-by: Laurent Pinchart Reviewed-by: Kieran Bingham Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index 663ab98d1f97..99795c677dd5 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -352,6 +352,7 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu, dev_dbg(rcdu->dev, "connected entity %pOF is disabled, skipping\n", entity); + of_node_put(entity); return -ENODEV; } @@ -387,6 +388,7 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu, dev_warn(rcdu->dev, "no encoder found for endpoint %pOF, skipping\n", ep->local_node); + of_node_put(entity); return -ENODEV; } -- cgit v1.2.3