linux-kernel - [PATCH 4.19 14/64] of: overlay: kmemleak in dup_and_fixup_symbol

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Date:   Wed, 22 Apr 2020 11:56:58 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, "Erhard F." <erhard_f@...lbox.org>,
        Frank Rowand <frank.rowand@...y.com>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH 4.19 14/64] of: overlay: kmemleak in dup_and_fixup_symbol_prop()

From: Frank Rowand <frank.rowand@...y.com>

commit 478ff649b1c8eb2409b1a54fb75eb46f7c29f140 upstream.

kmemleak reports several memory leaks from devicetree unittest.
This is the fix for problem 4 of 5.

target_path was not freed in the non-error path.

Fixes: e0a58f3e08d4 ("of: overlay: remove a dependency on device node full_name")
Reported-by: Erhard F. <erhard_f@...lbox.org>
Signed-off-by: Frank Rowand <frank.rowand@...y.com>
Signed-off-by: Rob Herring <robh@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/of/overlay.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -261,6 +261,8 @@ static struct property *dup_and_fixup_sy

 	of_property_set_flag(new_prop, OF_DYNAMIC);

+	kfree(target_path);
+
 	return new_prop;

 err_free_new_prop: