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of: unittest: kmemleak on changeset destroy

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commit b3fb36ed69 upstream.

kmemleak reports several memory leaks from devicetree unittest.
This is the fix for problem 1 of 5.

of_unittest_changeset() reaches deeply into the dynamic devicetree
functions.  Several nodes were left with an elevated reference
count and thus were not properly cleaned up.  Fix the reference
counts so that the memory will be freed.

Fixes: 201c910bd6 ("of: Transactional DT support.")
Reported-by: Erhard F. <erhard_f@mailbox.org>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Frank Rowand
2020-04-16 16:42:46 -05:00
committed by Greg Kroah-Hartman
parent c8fddc945a
commit 3352cc2f7b
1 changed files with 4 additions and 0 deletions
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4
drivers/of/unittest.c
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@@ -772,6 +772,10 @@ static void __init of_unittest_changeset(void)
unittest(!of_changeset_revert(&chgset), "revert failed\n");
of_changeset_destroy(&chgset);
of_node_put(n1);
of_node_put(n2);
of_node_put(n21);
#endif
}