of: overlay: Fix missing of_node_put() in error case of init_overlay_changeset()

[ Upstream commit 39affd1fdf65983904fafc07cf607cff737eaf30 ]

In init_overlay_changeset(), the variable "node" is from
of_get_child_by_name(), and the "node" should be discarded in error case.

Fixes: d1651b03c2df ("of: overlay: add overlay symbols to live device tree")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20230602020502.11693-1-hayashi.kunihiko@socionext.com
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index ed4e6c144a681e633eb6719b2df379af9f7d8c77..5289975bad708b2931148963905b8d4105070c9d 100644 (file)
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -811,6 +811,7 @@ static int init_overlay_changeset(struct overlay_changeset *ovcs)
                if (!fragment->target) {
                        pr_err("symbols in overlay, but not in live tree\n");
                        ret = -EINVAL;
+                       of_node_put(node);
                        goto err_out;
                }