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From:   frowand.list@gmail.com
To:     Rob Herring <robh+dt@kernel.org>,
        Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        Alan Tull <atull@kernel.org>, Moritz Fischer <mdf@kernel.org>
Cc:     linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
        devicetree@vger.kernel.org, linux-fpga@vger.kernel.org
Subject: [PATCH v6 06/18] of: overlay: do not duplicate properties from overlay for new nodes
Date:   Mon,  5 Nov 2018 07:25:03 -0800
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In-Reply-To: <1541431515-25197-1-git-send-email-frowand.list@gmail.com>
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From: Frank Rowand <frank.rowand@sony.com>

When allocating a new node, add_changeset_node() was duplicating the
properties from the respective node in the overlay instead of
allocating a node with no properties.

When this patch is applied the errors reported by the devictree
unittest from patch "of: overlay: add tests to validate kfrees from
overlay removal" will no longer occur.  These error messages are of
the form:

   "OF: ERROR: ..."

and the unittest results will change from:

   ### dt-test ### end of unittest - 203 passed, 7 failed

to

   ### dt-test ### end of unittest - 210 passed, 0 failed

Tested-by: Alan Tull <atull@kernel.org>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
---
 drivers/of/overlay.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index 6fd8e6145e10..9808aae4621a 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -393,7 +393,7 @@ static int add_changeset_node(struct overlay_changeset *ovcs,
 			break;
 
 	if (!tchild) {
-		tchild = __of_node_dup(node, node_kbasename);
+		tchild = __of_node_dup(NULL, node_kbasename);
 		if (!tchild)
 			return -ENOMEM;
 
-- 
Frank Rowand <frank.rowand@sony.com>