From: Frank Rowand Date: Tue, 17 Oct 2017 23:36:28 +0000 (-0700) Subject: of: overlay: loosen overly strict phandle clash check X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6d0f5470dbdeb7f9b1e20fc9409bf07fab1b5ac5;p=linux.git of: overlay: loosen overly strict phandle clash check When an overlay contains a node that already exists in the live device tree, the overlay node is not allowed to change the phandle of the existing node. The existing check refused to allow an overlay node to set the node phandle even when the existing node did not have a phandle. Relax the check to allow an overlay node to set the phandle value if the existing node does not have a phandle. Signed-off-by: Frank Rowand Signed-off-by: Rob Herring --- diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index 4cdee169a5ab6..791753321ed2d 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -311,10 +311,10 @@ static int add_changeset_node(struct overlay_changeset *ovcs, return build_changeset_next_level(ovcs, tchild, node, 0); } - if (node->phandle) - return -EINVAL; - - ret = build_changeset_next_level(ovcs, tchild, node, 0); + if (node->phandle && tchild->phandle) + ret = -EINVAL; + else + ret = build_changeset_next_level(ovcs, tchild, node, 0); of_node_put(tchild); return ret;